in EL34 / 6CA7's i'm very interested in reliable sourcing of RFT's, Matsushita, The Russian NOS stuff mentioned, Svetlana variants and anything else sonically cool....still doing a lot reading on these histories and sounds
Seems like there are tons and tons of RFT tubes all about Europe.
Was wondering about the Coin base / Wafer base tubes...was GE the only maker of these?
What's the general take on these out there?
Do they sound as good as large base tubes?
Are they fragile in any way?
Im still learning the variants of EL34 Soviet stuff..
I've got a pair of matched TAD 6L6 in one amp..they sound fine..no real complaints
Im indefinitely interested in longevity in this search..but also of course interested in marked tonal/sound variations..
...which EL34's and 6L6's are you folks liking?
mainly interested in power tube
chatter..6V6's maybe should be in here but I just bought a nice quad of matchy Sylvania
chrome domes so im sorta set for a few....minutes.
I do consider, in the El34 area, clean tones as well..my only EL34 amp is...
was going through that actually as your post came in yesterday..didnt really make a difference..at first i thought it did..then i didn't think it did...placebo sorta effect getting me
Removing the p.i. was the only thing that killed the hiss..but it seems like removing the p.i. just...
yea, no...the PR has stock values all through, straight up cap can.. except for what the tech i calls, i think "the 50 cent mod" that makes the tremolo a little bit deeper..and a bias pot added..
I've got other amps tho and have been asked this during recaps..A deluxe i have was bumped up in...
As far as i know the recap was done to spec..I always ask the tech i use to keep it proper in spec numbers and proper to the era caps..for what that's worth.
Seems like a lot of techs these days want to bump the filter cap values a bit?
I've encountered that quite a bit.
I did pull the phase inverter and yes, the snow goes away..
It's been serviced, yes..recapped including filter caps..
a while back i was chopsticking the circuit and noticed a bit of this same noise
in a reaction at the plate resistors..
That is for sure..i think the legends just grew from the aberrations that can happen with a number of old parts going out slightly out of spec..
I've had two amps that i fell in love with right away that had original parts all through them when i bought em..one was Princeton Reverb that had a...
My 69 Vibrolux was acting perfectly, super quiet..sounding great..
I turned it on the other day and im getting a white noise, hissy, snowy..tiny bit of crackle
but not suoer pronounced or loud crackle..it's mostly snowy noise, consistent
The amps does this with no guitar plugged into it...
it's just odd to me that so many of the answers on the web are all over the place as to what these caps actually are made of..lots of times when someone does try to provide an answer to the question the answer is preceded by "they are most likely some type of...", or, "i think they are..."
What are those old Capacitors, the Brown Turds and Blue Molded, in Fender amps, made of?....
What is the technical name for this type of cap based on material?
I see more speculation on this topic out there than anything else.
seems weird that I haven't seen a dog-down definitive...
adding a question here..
I have a 'vibrolux' 5F11 --Harvard with Tremolo i believe.
It's a fairly clean amp most of the way up but it sounds pretty good driven..
Can Rob H's effects loop scheme up there be installed in the 5F11 circuit as well?
I mainly need it for Reverb when licking the amp...
digging out some speakers that've been at rest for a while and mixing stuff up
found a nice combo of a 1955 nicely reconed (slight ribbing) Jensen P10Q (alnico) Have a pair of these,, still great speakers after the recone..previously smooth cones that had begun to fall apart..IMO, much more fun...
Incidentally, the Reverb tank in the Vibrolux was a
Gibbs, i believe original to the Amp..
Saw some info as i was reading about current status of Accutronics/Belton tanks..there's a guy somewhere who restores old reverb tanks..Scott at ebtech audio?
Anyone familiar? I think he used to be with...
Thank you...again, with success behind me.
Solved my issue and gave me a reference on how crapped out that Vibro's tank actually was..I replaced the tank in my Deluxe Reverb 3 years ago or so, so it's up to snuff.
(For the record here, it's an Accutronics & Belton 4AB3C1B )...
I took the tank out and placed it on a level area behind the amp..better, but a B note, loudish sets off the jangle-shoosh-glassy sound..
Sounds like a tube but I've gone through a bunch of swaps and can't zone in on it..
Seems better with the tank outside of the cabinet..i 'think'
Very easy to...
I've chased this annoying sound before..
it's when you have the reverb on--worse at higher amp volume..
that jangling, shooshy-like sound shaking a jar of broken glass thing..
Presents in the decay-right after a sympathetic note from a guitar sets it off..
more pronounced after certain chords...
I notice when reading/learning...looking at schematics..and looking at layout pics and gut shots..That there are different voltage ratings on coupling caps amp to amp--same capacitance rating>different voltage rating
..same model, different model, similar or same legacy circuit..when...