How much would you pay for a non-functioning tube head without knowing the issue?

[Adieu]

There's a local guy selling an allegedly busted Marshall TSL 100... could be as little as a blown fuse or dead tube, could be ???

He wants 300... should I offer him 200?

[Chistopher]

Re: How much would you pay for a non-functioning tube head without knowing the issue?

If it's a bad tube, it's worth a look. If the circuits are corroded, it might not be worth your time.

Tell him your interested but won't pull the trigger until he can diagnose the issue.

[Old Guy]

Re: How much would you pay for a non-functioning tube head without knowing the issue?

Do you have someone you can take with you that knows tube amps? Tube amps can be so finicky. I would offer him $200, but only if you're comfortable losing that $200 outright.

[Adieu]

Re: How much would you pay for a non-functioning tube head without knowing the issue?

If it's a bad tube, it's worth a look. If the circuits are corroded, it might not be worth your time.

Tell him your interested but won't pull the trigger until he can diagnose the issue.

If he diagnoses the issue, it won't be a cheap deal anymore lol

[Adieu]

Re: How much would you pay for a non-functioning tube head without knowing the issue?

Do you have someone you can take with you that knows tube amps? Tube amps can be so finicky. I would offer him $200, but only if you're comfortable losing that $200 outright.

I've opened up a TSL before, to change voltage to Euro mains...it's a bunch of PCBs inside, but should still be serviceable

[IM4Tone]

Re: How much would you pay for a non-functioning tube head without knowing the issue?

Tough call not knowing. If it were me, I'd offer $100 and perhaps bump it up to $150 if he didn't accept that. As someone else said 'Only if you'd be willing to gamble on losing the purchase price' if it is too costly to repair.

[Adieu]

Re: How much would you pay for a non-functioning tube head without knowing the issue?

Tough call not knowing. If it were me, I'd offer $100 and perhaps bump it up to $150 if he didn't accept that. As someone else said 'Only if you'd be willing to gamble on losing the purchase price' if it is too costly to repair.

Oh I wouldn't PAY to repair it... I'd try to DIY

And the whole exercise would be a for-profit project

[justFred]

Re: How much would you pay for a non-functioning tube head without knowing the issue?

if it's not a tube or a fuse...it is a big mess of stuff to try and troublshoot.....here is a link to the schematic so you can see for yourself...

https://www.thetubestore.com/lib/the...-Schematic.pdf

[Adieu]

Re: How much would you pay for a non-functioning tube head without knowing the issue?

Most fried electronics components look visibly burnt on death though, right?

Does that thing have any IC's or pure analog?

[Lake Placid Blues]

Re: How much would you pay for a non-functioning tube head without knowing the issue?

That's about 50% off the typical used price for a TSL. If it was any other amp but a JCM2000 it would be low risk. Some JCM2000 DSLs and TSLs prior to the mid 2000 years eventually developed a problem called bias drift, though. Bias drift was caused by the board breaking down, probably from heat, and becoming conductive beyond the traces. The only proper fix is a new board. The board could cost the extra $300. There is a upgraded replacement board available from places like AES. If it is after a certain year (2005?) then bias drift is not an issue. Not saying that is the problem here, but it could be. Find out how the amp was behaving before it quit working.

[justFred]

Re: How much would you pay for a non-functioning tube head without knowing the issue?

Most fried electronics components look visibly burnt on death though, right?

Does that thing have any IC's or pure analog?

No, you can have a fried resistor for example and it can take out several components around it with no sign of damage.....the thing is full of ICs....

[Adieu]

Re: How much would you pay for a non-functioning tube head without knowing the issue?

I looked it only has 1 IC on the motherboard?

Guy says it powers up but "makes wacky sounds"... that's a clean the insides and find the fried tube issue most likely, right?

Talked him down to $200 it seems... worst case it's a new $225 motherboard, otherwise roll through some preamp tubes from working amps... unfortunately my Mesa and Bugera are 6L6-powered, but I can pull pairs to find the dead EL34 on a Marshall right?

[Boogie Bill]

Re: How much would you pay for a non-functioning tube head without knowing the issue?

I bought a dead Peavey Rock Master 120-watt tube head from a guy for $25 back in 1988. Turned out to be a 25-cent internal blown fuse. Just a killer amp, too.

Good luck!

Bill

[Gtrjunior]

Re: How much would you pay for a non-functioning tube head without knowing the issue?

I think it’s worth $200 all day.

[Securb]

Re: How much would you pay for a non-functioning tube head without knowing the issue?

Just the amp enclosure is worth about $150 - $200 depending on the market. I would roll the dice.