changed sides so sshv2 cabling will be easier ...
finished the 2nd ps for 6v6 fil, and did a first test of the main ps using a 274b rectifier, measures just like psudII ...
next is to test the sshvII ....
almost there .... 🙂
finished the 2nd ps for 6v6 fil, and did a first test of the main ps using a 274b rectifier, measures just like psudII ...
next is to test the sshvII ....
almost there .... 🙂
An externally hosted image should be here but it was not working when we last tested it.
no BA3 or F6 here buzzforb ..
only a f5 and a zenv4, I think that you didnt like the 6v6/f5 comb ....
only a f5 and a zenv4, I think that you didnt like the 6v6/f5 comb ....
I haven't tried it with F5T, but did not like it with F5. Just an opinion, though. I would guess that you like it with ZV4, but time will tell.
Good luck on your work Fellas,
Hopefully I can start with my new build with sshv2 soon. I have been happy with the 6v6 pre for many years without the sshv2. a little bit of hum with AC heaters but tolerable.
Hopefully I can start with my new build with sshv2 soon. I have been happy with the 6v6 pre for many years without the sshv2. a little bit of hum with AC heaters but tolerable.
tried ss rectifier, IN4007 and a 100Ohm in series before c1, measured 440VDC with no load ...
tested SSHV2 ...
didnt have 8.5Κ dummy load, closest was 7.6K (series 4.7/2.2/0.68) ...
R4 was set to give stable 40mA, but with R11 fully turned I measured 291V across dummy load ...
will try later with 44mA to see if I get 340V across dummy (that is if I done the math correctly 🙄) ...
the whole thing lasted about 5 minutes ... 2540 heatsink run quite hot, 840 heatsink was cold ...
tested SSHV2 ...
didnt have 8.5Κ dummy load, closest was 7.6K (series 4.7/2.2/0.68) ...
R4 was set to give stable 40mA, but with R11 fully turned I measured 291V across dummy load ...
will try later with 44mA to see if I get 340V across dummy (that is if I done the math correctly 🙄) ...
the whole thing lasted about 5 minutes ... 2540 heatsink run quite hot, 840 heatsink was cold ...
yeap,
couple of little things to solder , some cable management and should be ready to go ...
couple of little things to solder , some cable management and should be ready to go ...
SS vs Tube rectifier
DimZ, I am following your recent posts. Are you planning to do a listening test: IN4007 vs 274B? I would love to hear about that.
I have all the parts for my build but am on the fence about the rectifier - only because I was making an order from Antek and got a toroid for the Salas project too - but w/o a 5V winding.
Note that I am currently using my version of the "International Loesch" preamp which uses a soild state bridge and still sounds fabulous.
Mike
DimZ, I am following your recent posts. Are you planning to do a listening test: IN4007 vs 274B? I would love to hear about that.
I have all the parts for my build but am on the fence about the rectifier - only because I was making an order from Antek and got a toroid for the Salas project too - but w/o a 5V winding.
Note that I am currently using my version of the "International Loesch" preamp which uses a soild state bridge and still sounds fabulous.
Mike