Please send me an e-mail.I will take 4 please
Thanks
Colin
Hi Tony,
No you don't need one. It is just a neat/tidy mounting solution if you were to use one of this type of PCB mounting transformers for your PSU. It will fit any of their 15VA/25VA transformers. I plan to use a 25VA/15-0-15 I have to hand. for my B4. I think some of us are buying for other projects too.
The 15VA may do just as well, but someone with more knowledge would need to confirm that for you.
Duncan
Question to PigletsDad (sorry if this was already treated in another thread as I did not yet read them all ...):
I know that it is a symetrical PSU but I wanted to know if there is a "thumb" when switching ON / OFF the B4 if the B4 is connected to a NAP ?
Thanks
Olivier
Question to PigletsDad (sorry if this was already treated in another thread as I did not yet read them all ...):
I know that it is a symetrical PSU but I wanted to know if there is a "thumb" when switching ON / OFF the B4 if the B4 is connected to a NAP ?
Thanks
Olivier
http://www.quasarelectronics.com/3114-25v-2a-dual-polarity-unregulated-power-supply.htm
I used this with centre tapped transformer as the buffer needs dual rail supply.
http://www.pinkfishmedia.net/forum/showthread.php?t=66430&page=8
This was when I asked the same question. +/- 15 Volt 1 amp
It works fine.
I am waiting for the Hackercap group buy Pcb's to appear. Carl recommends the use of Qspeed/Hexfred diodes in the build. Just wondered if they could be used in one of these boards too.
I was thinking about the 6A or 8A version. RS stock these too.
Which phono stage? Most will drive the 10K attenuator without any problem. SNR is not a big issue as the noise from the front of the phono stage completely dominates.
The output impedance varies with attenuation. Putting the buffer after the attenuator fixes that.
Phonoclone is op-amp based, and will drive the attenuator without problem. Putting buffer between it and the attenuator will have no benefit.