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Babelfish M25, SissySIT - general building tips and tricks
Babelfish M25, SissySIT - general building tips and tricks
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Old 10th February 2019, 09:11 PM   #431
dBel84 is offline dBel84  United States
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Quote:
Originally Posted by Russellc View Post
The custom work of "Bablefish" on your front plate is stunning. Russellc
thanks - took many hours of contemplation and then last night I added the squid to balance the left dominance of the panel

I didn't know that there was a difference when I ordered and have the 50% nickel - decided to use them and see how it sounded ... I have no urge to replace with the HPC

..dB
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Old 10th February 2019, 09:15 PM   #432
Russellc is offline Russellc  United States
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Babelfish M25, SissySIT - general building tips and tricks
Well, those were the original, intended transformer. I am inclined to use it as well. Somehow, I doubt I could tell the difference. I have a set of edcors, but thought I might step it up a bit.

Russellc
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Old 10th February 2019, 10:05 PM   #433
Mazeppa is offline Mazeppa  United States
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Babelfish M25, SissySIT - general building tips and tricks
I have inquired about Cinemags, but my e-mails remain unanswered.

Send them again, I guess.
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Old 10th February 2019, 10:29 PM   #434
tubesguy is online now tubesguy  United States
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Originally Posted by Mazeppa View Post
I have inquired about Cinemags, but my e-mails remain unanswered.

Send them again, I guess.
Could be worse. I was able to contact them, and place and pay for my order, on December 10 and haven't heard from them since.
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Old 10th February 2019, 11:00 PM   #435
Zen Mod is offline Zen Mod  Serbia
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Babelfish M25, SissySIT - general building tips and tricks
it seems they owe me few freebies , then

forget Pa's orders , Sissy rulez!

(let's ignore a fact that Sissy is Papamp , like always)

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Old 11th February 2019, 12:30 AM   #436
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Babelfish M25, SissySIT - general building tips and tricks
Quote:
Originally Posted by dBel84 View Post
........
one word "spooky"


........
I slightly edited your pic , to be adequate of state of things

Attached Images
File Type: jpg mighty Sissy.jpg (147.8 KB, 116 views)
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Old 11th February 2019, 12:43 AM   #437
dBel84 is offline dBel84  United States
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I can edit the real one too ..dB


after about 6 hours left channel dc drifted up beyond ability to zero - so will make some minor adjustments, sound is truly whacko !!
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Old 11th February 2019, 12:45 AM   #438
Zen Mod is offline Zen Mod  Serbia
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Babelfish M25, SissySIT - general building tips and tricks
gremlins are in that amp of yours

pretty much sole one not being settable as intended to be

let me do this last stint of shipping ( doing smd thingies and preparing packing these days) so we can figure out how to solve your for good
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Old 11th February 2019, 12:55 AM   #439
dBel84 is offline dBel84  United States
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gremlins indeed - I have looked ( and looked .... ) replaced the VR1 and the opto but not not the current sensing chip = everything seems to work aside from being able to reduce the current - I can increase it mooocho but stopped at 3A because I was just testing to see if it adjusted. I have all the critical resistors on sockets so that I can change out values to get it in operating zone

BUT it works and sounds fantastic even if it runs a little hot

If I was sure that it was a mistake on the board, I would buy another set but I have a sneaky feeling it is the VGS of the SIT ( or FET ). I appreciate your willingness to think about it , I know there is much to do ( always ) especially with those crazy new boxes you scrounged up

..dB
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Old 11th February 2019, 01:13 AM   #440
Zen Mod is offline Zen Mod  Serbia
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Babelfish M25, SissySIT - general building tips and tricks
it can't be Vgs of SITs

if you tried increasing value of R18 and R19 (even if I can't figure reason why )

if you tried decreasing value of R15

if you tried decreasing value of R16 and R17 .............

I hope you didn't mount Rs (which is strictly for Babelfish M25) ( I can't see them on pics , but better to ask)

if you don't have too much protection diodes

if you read a note about ZD1 and obeyed

if you have steady 5V feeding Halls .......

then I'm in need of new (spare) towel , to preserve my calm
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