Transition Audio Design modded Altec 1570B

CHRIS, THANKS A MILLION!! i will have to approach very carefully before tinkering around as i know mine may be different from your pair!

jay

Notes and schematics for my 2006 pair are posted at this link, along with the Altec article from Vacuum Tube Valley No. 7.

Cheers, Chris

https://spaces.hightail.com/receive/ftAgHUDUGz

RIP Tom......

i didnt know Tom passed away . I did know he was having health issues . I called him up midyear 2023 to check up on him and also ask for maybe a copy of his written instructions on how to bias and balance my 1570 B altecs he got me ( circa 2000) . i have since lost hose papers and needed his help . needless to say , he wasnt able to help me and said that best bet is to find the " manual" .after speaking to him , i looked again and could not find the manual. sadly , after 20 years plus, i still havent biased or balanced the mono amps.( which i truly think is the best amps ive ever owned)

hopeful that this forum may help me out ......

thanks for accepting me into the forum.

RIP Tom......

i didnt know Tom passed away . I did know he was having health issues . I called him up midyear 2023 to check up on him and also ask for maybe a copy of his written instructions on how to bias and balance my 1570 B altecs he got me ( circa 2000) . i have since lost hose papers and needed his help . needless to say , he wasnt able to help me and said that best bet is to find the " manual" .after speaking to him , i looked again and could not find the manual. sadly , after 20 years plus, i still havent biased or balanced the mono amps.( which i truly think is the best amps ive ever owned)

hopeful that this forum may help me out ......

thanks for accepting me into the forum.

I just got Toms Personal pair of 1570B amps, They are slightly different in that they do not use the 12ax7 instead they use the 6sl7.............They are amazing amplifiers for sure........................RIP Tom

7/16/1923. I’m very sad to report that Tom Tutay has died. Suffering from Parkinson’s, I believe Tom was a victim of Florida’s current heat wave. A sad way for a great man to die. We shall miss him greatly.

I also have a pair of Tom's 1570B mods plus one of his subwoofer buffers.

My friends leave my house with jaws agape after listening parties..

Cheers, Chris in Tucson

Would be curious to see how they compare

Mike

There is another guy that does the mods on these vintage commercial amps. John Tucker of Exemplar Audio is building me a set of Altec 1570B mono blocks and I should have them in about a month.

Lance

Randall, sorry for the late response!! Yes, I still 

have a pair of Tom’s 1570s. Pains me but I think I want to sell them. I also have an stock 1570b that is functional for replacement iron in case of failure in one of the modded amps. 
 

Slainte!

Mike