Search found 244 matches

by jabguit
Sat Oct 11, 2025 1:23 pm
Forum: For Sale/Trade
Topic: FS: Western Electric 350A pair
Replies: 5
Views: 3670

Re: FS: Western Electric 350A pair

To the top...
by jabguit
Sat Oct 11, 2025 1:21 pm
Forum: For Sale/Trade
Topic: FS: Old Power tube pairs
Replies: 7
Views: 4654

Re: FS: Old Power tube pairs

Bump to top.
by jabguit
Sat Oct 11, 2025 1:19 pm
Forum: For Sale/Trade
Topic: Classic Tone Bassman xfmr pair
Replies: 2
Views: 8420

Re: Classic Tone Bassman xfmr pair

Sold.

Admin please delete thread.


cheers,
by jabguit
Sun Oct 05, 2025 10:49 am
Forum: Fender Discussion
Topic: 1963 black face twin?
Replies: 7
Views: 3596

Re: 1963 black face twin?

Stevem wrote: Sat Oct 04, 2025 10:35 am

The first Fender combo amp to use a 15” speaker came out between 63 and 64 and was called a Vibroverb.

6G5 Brown Pro had a 15.

cheers,
by jabguit
Thu Oct 02, 2025 10:45 am
Forum: Technical Discussion
Topic: Anticipating chassis flex - multiple heavy transformers
Replies: 15
Views: 6461

Re: Anticipating chassis flex - multiple heavy transformers

sluckey wrote: Wed Oct 01, 2025 2:54 pm These chassis were 17.00 x 4.00 x 3.00b but only .04" thick! That's less than 1/32"!

1/32" is 0.03125" Still 40 thou is thin.

cheers,
by jabguit
Tue Sep 23, 2025 1:04 pm
Forum: For Sale/Trade
Topic: Classic Tone Bassman xfmr pair
Replies: 2
Views: 8420

Classic Tone Bassman xfmr pair

ClassicTone pair (40-18005 PT; 40-18009 OT) from just after they closed their doors, 2021 I think. Leads are cut but should be long enough for most installs. Plenty on OT.
$150 for the pair plus shipping. PP preferred. Sold.
by jabguit
Sat Sep 13, 2025 8:20 pm
Forum: Technical Discussion
Topic: Bias voltage drops when rest of amp is conneceted.
Replies: 26
Views: 3823

Re: Bias voltage drops when rest of amp is conneceted.

RomesInMil wrote: Sat Sep 13, 2025 4:25 pm
jabguit wrote: Sat Sep 13, 2025 10:34 am
4AR5? maybe 5AR4?
Does it feel good to correct someone for a obvious and unimportant typo? I hope your day was a little better.
[/quote]


wow! I guess spelling, grammar and logistics have no place on this forum......

cheers,
by jabguit
Sat Sep 13, 2025 10:34 am
Forum: Technical Discussion
Topic: Bias voltage drops when rest of amp is conneceted.
Replies: 26
Views: 3823

Re: Bias voltage drops when rest of amp is conneceted.

OK here might be another clue, using a bulb limiter, I get surge when rectifier is plugged in, replaced the socket, same issue, replaced the 4AR5 same issue.....dont see obvious short.... voltage harness unplugged, is fine, plugged in its fine, as soon as the rect is plugged in surge.... are my pro...
by jabguit
Thu Sep 11, 2025 10:43 am
Forum: Technical Discussion
Topic: Filter Cap Replacement - Leaving Old Filter Cap Wires Soldered
Replies: 9
Views: 1538

Re: Filter Cap Replacement - Leaving Old Filter Cap Wires Soldered

Which amp? The damnable Mark IVs and Vs make it very time consuming to lift the PCB. I'd solder new filter caps to existing leads if it was my own amp. "I talked to a new tech (old one is in retirement now) about the filter cap replacement job that my Mesa Mark III amplifier needs." this should be ...
by jabguit
Wed Sep 10, 2025 10:32 am
Forum: Technical Discussion
Topic: Bias voltage drops when rest of amp is conneceted.
Replies: 26
Views: 3823

Re: Bias voltage drops when rest of amp is conneceted.

Phil_S wrote: Tue Sep 09, 2025 2:12 pm
pdf64 wrote: Mon Sep 08, 2025 11:30 pm I guess White claw is a beer?
What is a 'TF'?
Can't help with "TF" except to say, I don't think it is the last two letters of WTF...
trans former?
by jabguit
Fri Sep 05, 2025 10:36 am
Forum: Marshall Discussion
Topic: Raising Capacitance of First Main Reservoir Node?
Replies: 11
Views: 3495

Re: Raising Capacitance of First Main Reservoir Node?

Colossal wrote: Thu Sep 04, 2025 10:55 am
jabguit wrote: Thu Sep 04, 2025 10:49 am
FourT6and2 wrote: Wed Sep 03, 2025 8:20 pm The typical arrangement in these amps is two 50/50 caps wired in series-parallel for a total of 50uF filtering.
how does one series/parallel 2 caps?
They are two 50uF + 50uF caps in the same envelope (F&T, ARS,etc).
well then - that's a horse of a different color....
by jabguit
Thu Sep 04, 2025 10:49 am
Forum: Marshall Discussion
Topic: Raising Capacitance of First Main Reservoir Node?
Replies: 11
Views: 3495

Re: Raising Capacitance of First Main Reservoir Node?

FourT6and2 wrote: Wed Sep 03, 2025 8:20 pm The typical arrangement in these amps is two 50/50 caps wired in series-parallel for a total of 50uF filtering.
how does one series/parallel 2 caps?
by jabguit
Tue Sep 02, 2025 10:39 am
Forum: Technical Discussion
Topic: Glue on the filter caps
Replies: 10
Views: 2799

Re: Glue on the filter caps

especially big 100n orange drop caps are prone to wiggling and breaking their leads. happened to a couple amps I've owned over the years...

my $0.02
by jabguit
Mon Sep 01, 2025 10:45 am
Forum: Technical Discussion
Topic: Swirling Fizzy Tone on Decaying Notes
Replies: 27
Views: 4142

Re: Swirling Fizzy Tone on Decaying Notes

different speaker?
by jabguit
Tue Aug 26, 2025 10:30 am
Forum: For Sale/Trade
Topic: FS: Old Power tube pairs
Replies: 7
Views: 4654

Re: FS: Old Power tube pairs

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