Very silent in here, maybe the German drives the others away.
I've nearly finished my PCB but did solder the 7805 standing up. So: How much cooling does it really need?
So far I've only seen pictures where it's connected with the case.
I mean it's only used in the relais, right?
Anybody added phantom power to their DLA2A? Any interesting ways to derive the 48v without an extra transformer? Has this already been discussed?
My unit is just about ready to go, just waiting on the optos and want to add phantom and perhaps input tranny options. ATM I have the higher ratio Sowters.
I just bought a pcb + psu from Volker, i think i have read thru the whole thread, and i still have a few questions to you experts :
1 - what kind of meter do i need ? Is the 1176-type ok ?
2 - the bom link on page 1 is ok for the latest pcb ?
3 - i'll use Edcor XSM series transformers, in and out, (sowter is too expensive right now...).10k/600k for output and the 10k/10k for input. I believe there is a mod or at least some values to be changed, but i didnt find any info...
1. any standard VU meter will work, 1176-type is ok
2. I think the link doesn't work anymore, and the BOM might be a little old. however, nothing changed between the PCB revisions
3. nothing to change or mod
No, I didn't try Edcors in my D-LA2A, but have seen many people using it.
They are fine for the money. The only problem is there (non existing) quality control,
quite a few people are receiving broken transformers.
Thanks a lot.
Another question about tubes:
What tubes did you guys use ?
- do i really need 6AQ5A or can i replace it with EL90 ?
- Telefunken ECC803s are super expensive, i will use EH ECC83 i guess, i read someone is using it...
Thanks
Alex