#133 on the bay..

AtomCap · Post by **AtomCap** » Sat Sep 07, 2013 11:56 pm

http://www.ebay.com/itm/Dumble-Overdriv ... 1e7f43d3e0

$75K..

amp needs a recap

sergio · Post by **sergio** » Sun Sep 08, 2013 2:54 pm

why needs a recap???

For example there are many old Fender that sounds good again, with originals caps!

Sergio

ToneMerc · Post by **ToneMerc** » Sun Sep 08, 2013 3:21 pm

Sergio, true but look at the pictures of the lytics real close, hernias..lol.

However, I mentioned to Bryan that it needed a recap when he first posted the sound clips. I privately polled a few folks here and two off this forum about what they heard and the conclusion was the generally about the same, without me having to give my opinion.

However let's face it, it's a commodity and its all about collectors value and we have seen historically what some of these amps have sold for.

Eventhough it needs a cap job, 100% original has the potential to bring more money than an amp with fresh caps.

TM

martin manning · Post by **martin manning** » Sun Sep 08, 2013 3:43 pm

Ya sell it for what it is in original condition and let the new owner make the call.

AtomCap · Post by **AtomCap** » Mon Sep 09, 2013 4:52 pm

Its surely a nail biter! The caps look bloated and they're easily past the 1/2 life and I'm certain they've leaked from spec and effect the amps sound, but in a good way? or a bad way? Who knows..

Sure some old fender amps sound great with the original caps, use them daily for a month or so and let me know how the results are... poof.

talbany · Post by **talbany** » Mon Sep 09, 2013 5:36 pm

a good way? or a bad way? Who knows..

Unless your going for the early Kurt Cobain sound (Silverface Fender in need of well everything):lol: Change caps,especially an amp of that value..Hey Robben did it..

If I were purchasing that amp I would like to see that the amp has been properly maintained and cared for..Nothing lasts forever..But that's me

Tony

AtomCap · Post by **AtomCap** » Mon Sep 09, 2013 8:23 pm

I lean towards the recap as well, there are allot of folks who Re-form caps, in my opinion I think that's quite possibly the most unsafe thing to do and your just running the gauntlet with that practice. I'd replace every electrolytic, i'm sure the amp would have a drastic improvement in sound.
Even go as far as checking some of the resistors out as well.
and then de-goop it.. there is no secret anymore and the goop just makes servicing the amp difficult..

Cliff Schecht · Post by **Cliff Schecht** » Mon Sep 09, 2013 8:43 pm

sergio wrote:why needs a recap???

For example there are many old Fender that sounds good again, with originals caps!

Sergio

I am yet to hear a vintage amplifier NOT improve sonically from a recap (ignoring can caps which are sealed and can last a long time). Typical axial mounted electrolytic capacitors have a shelf life of about 20 years. They dry out and the ESR shoots up which means the capacitor can't effectively eliminate the ripple current (especially for the mains filtering cap right off the rectifier, this takes the brunt of the abuse in an amp). While the old caps may allow the amp to make sound, they will not be as effective as a fresh set of caps. You don't only gain in ripple reduction either, you gain in the ability of the capacitor to instantaneously deliver its energy to the power tubes (meaning the amp hits harder with tighter bass).

ToneMerc · Post by **ToneMerc** » Mon Sep 09, 2013 8:52 pm

Cliff Schecht wrote:you gain in the ability of the capacitor to instantaneously deliver its energy to the power tubes (meaning the amp hits harder with tighter bass).

Bingo, I said from from the beginning that I thought the amp sounded tired.

https://tubeamparchive.com/viewtopic.php?t=21855

TM

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