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Hm I wonder what it could be that is causing it to rattle. I had a custom amp have same issues and I had to replace the screws holding the sockets in because they were just a bit too raised to let the tubes sit flush - which was a lot more work than it sounds
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Mar 11, 2018 00:27
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Speaking of which I have some tube retainers lying around because he thought they were necessary instead of just using different screws  but they are pretty cheap
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Mar 11, 2018 00:30
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I had some rattle with certain notes twice. Once was when I was testing a 5f1 clone I made through a lovely speaker from an old solid state amp, the low range of a regular 6 string could lock that into a DDDWWUBUBUBUBUBUB that would probably have broken the speaker if I'd let it continue. I don't think this is your problem, though. Second one was a my old 1960s sano making something else in the room buzz with weird sympathetic vibrations, so definitely try it out in another room first.
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Mar 11, 2018 00:31
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Smash it Smash hit posted:Hm I wonder what it could be that is causing it to rattle. I had a custom amp have same issues and I had to replace the screws holding the sockets in because they were just a bit too raised to let the tubes sit flush - which was a lot more work than it sounds I'll see if the o-rings do anything (maybe reduce the tube noise, I hope?) and then take it to a tech. This is really just accelerating my plans for buying more amps and a decent cab, oops
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Mar 11, 2018 19:25
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Has anyone played the new Marshall Origin series? Thoughts?
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Mar 27, 2018 14:35
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Impedance Question: I almost ordered a Marshall DSL1-HR head last night, but I realized it only has 16-ohm output. My only speaker cabinet is 8 ohms. I've tried googling around to see if this will destroy the amp, but there's a mountain of contradictory information; some people say any mismatch will destroy a tube amp, some people say Cab > Amp is OK, some people say Amp > Cab is OK, some people say one "step" in either direction is fine. Is anyone here informed enough to give me a definitive answer? I'd just get a 16 ohm speaker for my cab, since it's a 1x12 and I'm not crazy about the Celestion 70/80 that's in it, but I am unfortunately completely unable to get the back off of the cab, despite hours of effort, so I don't think replacing the speaker is viable.
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Apr 28, 2018 23:44
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Gnumonic posted:
Is there a chance the speaker is front mounted and accessible through the grill?
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Apr 29, 2018 01:13
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Iucounu posted:Is there a chance the speaker is front mounted and accessible through the grill? I'm not sure. It's an (older) Laney closed back extension cab. I've taken the jack plate off the back but I can't really see inside well enough to tell if it's front or back mounted, and I've attempted all the obvious ways to take the grill off short of cutting it.
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Apr 29, 2018 01:26
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Don't mismatch the resistance, it will gently caress your amp. I'm sure that cab comes apart, someone put it together once upon a time. Weber speakers makes some good replacements, or you should be able to find one locally pretty easily. Call up some amp/speaker repair shops, you should be able to get a used Celestion for ~50 bucks.
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Apr 29, 2018 01:45
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Or get another 8 ohm cab and run them in series.
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Apr 29, 2018 01:51
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The grill could be attached with velcro and just needs to be pulled off.
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Apr 29, 2018 01:57
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You could get the combo version - it's $80 more, but you can make some of that back offloading the cab. Assuming you can find a buyer, of course. People tend to forget that part.
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Apr 29, 2018 06:27
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Pokey Araya posted:Don't mismatch the resistance, it will gently caress your amp. Next level misinformation here lmao.
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Apr 29, 2018 06:38
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The DSL1-HR Manual posted:WARNING: Only ever connect a single 1 x 16 Ohm speaker cabinet. Any other speaker configuration may stress the power amplifier section and in extreme cases may lead to valve and/or output transformer failure.
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Apr 29, 2018 06:46
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Mesa says it's OK to run a cab with a higher resistance than the amp's output but not the other way around. Makes sense considering running with no load destroys the output transformer.
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Apr 29, 2018 18:48
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Basically the amp expects to 'see' a certain amount of resistance to 'push' against. If it sees more resistance, thats fine, you'll lose a bit of potential effiecency/loudness but who cares. If it doesent see enough resistance/sees no resistance thats when things start getting dangerous.
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Apr 29, 2018 21:06
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Whoever assembled this drat cabinet was sloppy with the glue, and the tolex for the back panel was glued to the tolex in the cab. But hey, I managed to get the thing apart after only a few hours with a crowbar. I'm also pretty sure now that the DSL1HR isn't for me. I have kind of a weird use case: I have a *ton* of quality solid state preamp pedals that I run into an AMT Tubecake power amp, or, for more volume, an EHX 44-Magnum. I had thought the SS power amps had variable ohm outputs, but after looking at the manuals, I don't believe they do. My goal was to use the Marshall partly for the "classic Marshall tone" (all the pedals that purport to do it kind of suck), but mainly as a low watt tube power amp (via the fx return). I think for now I'll upgrade my speaker to a Swamp Thang and save up for the DSL20 head, which has an 8 ohm out and thus works with all my current gear. Thanks for the advice though!
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Apr 29, 2018 23:01
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that's a good speaker, but with smaller amps you have to really crank them to get it sounding decent. it's a bit plastic and stiff at even moderately loud bedroom volume
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Apr 30, 2018 04:36
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This seems to be about the right place to ask about this, so: Anyone got any suggestions for resources to identify an old amp? I've got an old Mesa boogie head that I bought like 20 years ago, but I have no clue what model or whatever it actually is. I think I'd like to get rid of it (or maybe not. who knows), since I haven't actually used it for 15 years, it's waaaay too loud for me, and I don't even have a speaker cab anymore... I think I remember it being sold as a mark III, but I don't think that can be right - there's no graphic eq (though amusingly there's a jack for the eq on/off footswitch) and only two powertubes (so, it's a 60W head I guess). But I don't know much else about it really - it sounds nice, and is loud as gently caress. And weighs about the same as my car.
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Apr 30, 2018 08:53
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L. Ron Mexico posted:This seems to be about the right place to ask about this, so: https://mesaboogie.zendesk.com/hc/en-us/articles/218914817-When-was-my-amp-made-?mobile_site=true You should be able to track it down by serial number.
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Apr 30, 2018 10:08
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whiter than a Wilco show posted:https://mesaboogie.zendesk.com/hc/en-us/articles/218914817-When-was-my-amp-made-?mobile_site=true Thanks a lot! From the serial number it's an early ("black dot" or whatever) Mark III - it's signed in october 1985, so that seems about right. That's cool to know if nothing else!
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Apr 30, 2018 13:19
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L. Ron Mexico posted:Thanks a lot! 
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Apr 30, 2018 15:49
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Eh, old Mesa/Boogies are cool and all, but collectors are a loving insufferable lot. I say this as a haver of 4 Mesa heads + 1 combo. 
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Apr 30, 2018 15:56
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L. Ron Mexico posted:Thanks a lot! Yeah um, that's not a bad find.
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Apr 30, 2018 19:56
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most wasted amplifier potential: I bought it from a dude playing in a church group (think mormon), and I have basically used it for a year total or something stupid like that. And these days (being old, fat and boring) I'm probably more likely to play smooth jazz on it than metal... Unfortunately (you know, collector & sales-price-wise) it's not exactly mint condition - unless it was originally shipped without a back-cover and with traffic-cone-orange power cord. It's otherwise in good condition though. But I can't exactly pay down my morgage by selling it, so maybe I'll hang on to it, and one day one of my kids can have the most vintage amp in primary school band practice
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Apr 30, 2018 20:35
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yeah that's a hell of an amp i wouldn't let go of it e: now i'm imagining some church band in provo, the guitarist accidentally hits the footswitch, turning if you could hie to kolob into master of puppets The Muppets On PCP fucked around with this message at 03:12 on May 1, 2018 |
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May 1, 2018 03:05
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The Muppets On PCP posted:yeah that's a hell of an amp i wouldn't let go of it I've talked to many a rocker who was only allowed to play music post-marriage if they did it in church. Even if they weren't playing metal in the temples of the Lord, they were still shredding in the temples of their hearts.
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May 1, 2018 12:56
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After The War posted:I've talked to many a rocker who was only allowed to play music post-marriage if they did it in church. Even if they weren't playing metal in the temples of the Lord, they were still shredding in the temples of their hearts. https://youtu.be/qSCUhqsy4Nk
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May 1, 2018 17:20
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After The War posted:I've talked to many a rocker who was only allowed to play music post-marriage if they did it in church. Jesus wept.
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May 3, 2018 01:16
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https://www.youtube.com/watch?v=8TsL0DO-c1E
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May 3, 2018 03:54
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Yamaha bought Ampeg. Seems like a great fit to me. Ampeg has been slowly drifting out of the picture which no apparent drive to do anything about it and Yamaha is an excellent company.
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May 11, 2018 12:16
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long shot but they should reissue the vh140c
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May 11, 2018 12:42
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The Muppets On PCP posted:long shot but they should reissue the vh140c gently caress yes. And the V4. 
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May 11, 2018 19:04
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Dang It Bhabhi! posted:gently caress yes. And the V4. Are all the weirdo tubes it used being made again, or will the blood of bearded stoner dudes be spilled over substitutions? Either way, we win. 
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May 11, 2018 21:21
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After The War posted:Are all the weirdo tubes it used being made again, or will the blood of bearded stoner dudes be spilled over substitutions? Yea JJ sells them for sure.
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May 12, 2018 01:37
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6k11 triple triode is not manufactured, I’ve stocked up on about 3 NOS ones for my 1970 V4B
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May 12, 2018 04:57
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Doomy posted:6k11 triple triode is not manufactured, I’ve stocked up on about 3 NOS ones for my 1970 V4B Oooh the preamp tube. Dang.
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May 12, 2018 16:46
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I’m not a tube expert but the 6k11 is a single medium, double high amplification tube. The spec sheet on google says it has a mu of 17 and 100, 100. So you could replace it based on that with a 12ax7 and 12bh7 both of which are current production. But you would naturally lose that weirdo tube mojo so that would cause certain people to flip their poo poo. Personally I wouldn’t have a problem with it. The only appeal I can see for limited or no longer manufactured stuff is that you can poo-poo other people who weren’t in the right place at the right time to buy it.
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May 12, 2018 18:26
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Doomy posted:I’m not a tube expert but the 6k11 is a single medium, double high amplification tube. The spec sheet on google says it has a mu of 17 and 100, 100. So you could replace it based on that with a 12ax7 and 12bh7 both of which are current production. Right I was thinking about that but you’d have to hack up the pre section to do it and these amps are going way up in price.
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May 12, 2018 22:52
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My amp warns me with a red light on the footswitch if I accidentally set it to the "clean" channel, whatever that is. \m/
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May 29, 2018 07:59
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