ZM—
Is it "bad" to have sinks on mosfets? I wasn't sure...So erred on installing them.
I got jensen transformers from
Jensen Transformers JT-123-FLPCH Line Output Transformer, PCB Mount
Jensen Transformers JT-123-FLPCH Line Output Transformer, PCB Mount
regarding older ( non-final) pcbs , itsallinmyhead is having all info , simply because he already made them
in all cases Lorlin switch , shorting (make before break) , 2 sections -6 positions - that's what you need and want
it can be some other brand than Lorlin , but I made pcbs for them (footprint) , and final is having input showing LEDs implemented
so , for pcb - through hole ( no solder lugs) , example : CK1030 Lorlin | Mouser Europe
pot ........ dunno - pick your own poison .......... just don't waste too much
blue ALPS is good enough ..... and certainly not the only one
if you're going to pay more, substantially - waste of the money , if you ask me
all of them are inferior to proper AVC ........ so - if you insist of making it better - instead of (any of named 3 types of ) autoformer , buy 200$ Slagle set and convert it to Poor Man Iron Pumpkin , tossing resistive attenuator completely out of story
I did explain procedure in Iron Pumpkin thread(s) , will repeat , if needed
in all cases Lorlin switch , shorting (make before break) , 2 sections -6 positions - that's what you need and want
it can be some other brand than Lorlin , but I made pcbs for them (footprint) , and final is having input showing LEDs implemented
so , for pcb - through hole ( no solder lugs) , example : CK1030 Lorlin | Mouser Europe
pot ........ dunno - pick your own poison .......... just don't waste too much
blue ALPS is good enough ..... and certainly not the only one
if you're going to pay more, substantially - waste of the money , if you ask me
all of them are inferior to proper AVC ........ so - if you insist of making it better - instead of (any of named 3 types of ) autoformer , buy 200$ Slagle set and convert it to Poor Man Iron Pumpkin , tossing resistive attenuator completely out of story
I did explain procedure in Iron Pumpkin thread(s) , will repeat , if needed
Last edited:
I messed up my build and killed the 5.1V and 27V zeners at the supply to
the relays.
Would using a shorting (make before break?) rotary switch for the input
switching have caused this? (I may have picked up the wrong switch type)
It's quite possible I've messed up the wiring elsewhere as well. If anyone
can post some pics for the wiring at the switch and at the pcb, I would be
most grateful.
Thanks,
Dennis
the relays.
Would using a shorting (make before break?) rotary switch for the input
switching have caused this? (I may have picked up the wrong switch type)
It's quite possible I've messed up the wiring elsewhere as well. If anyone
can post some pics for the wiring at the switch and at the pcb, I would be
most grateful.
Thanks,
Dennis
Although I haven't got there yet, I sure it will be very useful for me as well!
Russellc
switch is having nothing with these troubles ; it must be make before brake , to avoid clicksandpops while changing inputs
even if you make dead short on all IDC connector pins ( leading to selector switch) , result could be only all inputs engaged
I can't tell anything if I don't know which iteration of pcbs you guys have, so - pictures and words, please
one thing is important - each channel must use one separate section of selector switch
even if you make dead short on all IDC connector pins ( leading to selector switch) , result could be only all inputs engaged
I can't tell anything if I don't know which iteration of pcbs you guys have, so - pictures and words, please
one thing is important - each channel must use one separate section of selector switch
