ELGEN Lead Amplifier

Burns, Selmer, WEM, and more

ELGEN Lead Amplifier

Postby Raw Power on Wed Feb 22, 2017 7:05 pm

Anybody here still have one of these ?
Last edited by Raw Power on Thu Feb 23, 2017 3:17 am, edited 1 time in total.
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Re: ELGEN Lead 100

Postby LD50 on Wed Feb 22, 2017 11:09 pm

Waiting for CDH to chime in.

He now has his back with him for some cosmetics etc:

http://vintageamps.com/plexiboard/viewtopic.php?f=10&t=89504
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Re: ELGEN Lead 100

Postby Raw Power on Thu Feb 23, 2017 12:18 am

I just read that thread.. thanks for the link.

I bought one in Oct 2016 .. sounds good but I'm wondering if the caps are shot.

Gets loud but there's some kind of a raspy decay to single notes and chords
At lower volumes the effect is more pronounced

anyway some pics .

Image
Image
Image
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Re: ELGEN Lead Amplifier

Postby Gasstationman on Sat Feb 25, 2017 9:42 am

Some basic service can help.
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Re: ELGEN Lead Amplifier

Postby tracynorton on Sat Feb 25, 2017 6:38 pm

recap and rebias...it'll be right as rain
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Re: ELGEN Lead Amplifier

Postby Raw Power on Sun Feb 26, 2017 5:28 pm

tracynorton wrote:recap and rebias...it'll be right as rain


Tracy, thanks,, was hoping you'd show up to confirm !

What brand of caps do you like, these days ?
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Re: ELGEN Lead Amplifier

Postby tracynorton on Sun Feb 26, 2017 6:30 pm

Raw Power wrote:
tracynorton wrote:recap and rebias...it'll be right as rain


Tracy, thanks,, was hoping you'd show up to confirm !

What brand of caps do you like, these days ?


I would just use closest F&Ts....but I'm sure the LCR fanatics will chime in soon enuf. Either brand if fine.
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Re: ELGEN Lead Amplifier

Postby Gladmarr on Mon Feb 27, 2017 1:36 am

Do people not re-form caps anymore? I thought this was a big thing a while ago, and I never hear people talking about that anymore.
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Re: ELGEN Lead Amplifier

Postby Mr. Foxen on Mon Feb 27, 2017 11:31 am

Gladmarr wrote:Do people not re-form caps anymore? I thought this was a big thing a while ago, and I never hear people talking about that anymore.


Think it was realised to be a not great idea since new caps are way better.
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Re: ELGEN Lead Amplifier

Postby LD50 on Mon Feb 27, 2017 12:21 pm

Reforming caps is hit and miss.

If you have a vintage amp you play and love the sound and you recap it - it will change the sound and feel of the amp, no doubt.

Reforming is a technique for bringing back a sleeping amp back to life after a long lay off. It is not a technique for improving a regularly used amp back from the dead. If you reform the original caps that are in good visible condition (not bulging or leaking powder/electrolyte) and they reform back up to spec. then you are good to go, if not then you should replace with high quality caps. This should include bias caps, but not necessarily mean the small cathode bypass caps, as they rarely fail.

Of course to diagnose failing caps you either need to familiar with the sound of mains hum, see excess ripple coming from the power supply on a 'scope and then use a cap tester at working voltages (bridge/ESR meter etc) to really nail it down to see if they are drifting off. On a modern amp or one that is going to be gigged night after night on tour then the 'shotgun approach' might be the one for you (or if you simply cannot be arsed to go through the testing process :wink: ).

On the one I worked on the caps were failing (well IIRC one had failed) so I replaced.
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