The regulator board from from a Bob Ellis group buy: Scalable PSU/regulator GB
You are correct about the pot, it is 10k and I'm looking for a good 25k replacement.
You are correct about the pot, it is 10k and I'm looking for a good 25k replacement.
Member
Joined 2002
alps black beauty, i got mine on ebay 🙂 i bought 2 because i want to compare the B1 with it, and just a passive pot!
OK...got the distortion issue sorted out... ***Ahem*** miiiight have put a zener diode in the board instead of the 1n*** type....***Ahem***...
Got it all pretty well stuffed in the Hifi2000 galaxy chassis. Might have to trim some wires though. And I still need to mount the board to the bottom plate.
It is dead quiet and does sound nice. The only thing I wish is that I could get a little more gain out of the F5. With the B1 wide open it is just slightly less than my ideal - home alone - loud listening level. For 90% of the time it would be fine.
Got it all pretty well stuffed in the Hifi2000 galaxy chassis. Might have to trim some wires though. And I still need to mount the board to the bottom plate.
It is dead quiet and does sound nice. The only thing I wish is that I could get a little more gain out of the F5. With the B1 wide open it is just slightly less than my ideal - home alone - loud listening level. For 90% of the time it would be fine.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
Yes, a B1 feeding an F5 gives a total voltage gain from source to speaker of 6times (+15.5dB).
This converts a CDP signal of 2.2Vac to a maximum of 13.2Vac at the speaker. Needs quite high efficiency speaker to play loud.
This converts a CDP signal of 2.2Vac to a maximum of 13.2Vac at the speaker. Needs quite high efficiency speaker to play loud.
My humble but great sounding B1. The pcb is up on stilts and C2mounted underneath because I forgot about the caps diameter; with the lid on who'll know.Hope this works.
lots of great builds.
here's my B1. DIY chassis with sanded aluminum and tung-oiled sapele. connectors are Switchcraft, wanky wire is Cardas, Clarity Caps, and a PEC pot. the 24V PS is an o-11 from AMB Labs AMB Laboratories DIY Audio Site in a Hammond black anodized chassis. the 10mm LEDs illuminate the interior and serve to indicate if the output is to speakers (blue), or muted and line-out to a headphone amp (slutty red) via the 3PDT switch on the front. i also installed a pair of RCAs for a subwoofer-out.
sounds fantastic "driving" my Amp4 and uFonkens^2. i just need to finish my F5 now 🙂.
a big thanks to Nelson to sharing his knowledge and time, and to everyone else that contributes here at diyaudio.com.
here's my B1. DIY chassis with sanded aluminum and tung-oiled sapele. connectors are Switchcraft, wanky wire is Cardas, Clarity Caps, and a PEC pot. the 24V PS is an o-11 from AMB Labs AMB Laboratories DIY Audio Site in a Hammond black anodized chassis. the 10mm LEDs illuminate the interior and serve to indicate if the output is to speakers (blue), or muted and line-out to a headphone amp (slutty red) via the 3PDT switch on the front. i also installed a pair of RCAs for a subwoofer-out.
sounds fantastic "driving" my Amp4 and uFonkens^2. i just need to finish my F5 now 🙂.
a big thanks to Nelson to sharing his knowledge and time, and to everyone else that contributes here at diyaudio.com.
Attachments
lots of great builds.
here's my B1. DIY chassis with sanded aluminum and tung-oiled sapele. connectors are Switchcraft, wanky wire is Cardas, Clarity Caps, and a PEC pot. the 24V PS is an o-11 from AMB Labs AMB Laboratories DIY Audio Site in a Hammond black anodized chassis. the 10mm LEDs illuminate the interior and serve to indicate if the output is to speakers (blue), or muted and line-out to a headphone amp (slutty red) via the 3PDT switch on the front. i also installed a pair of RCAs for a subwoofer-out.
sounds fantastic "driving" my Amp4 and uFonkens^2. i just need to finish my F5 now 🙂.
a big thanks to Nelson to sharing his knowledge and time, and to everyone else that contributes here at diyaudio.com.
Beautiful setup!
Let's see the speakers!
thanks. scroll down towards the bottom - http://www.diyaudio.com/forums/full-range/65061-full-range-speaker-photo-gallery-116.html. i've since rewired the FF85K in series for an easir load on the Amp4 - i have bass and dynamics now 🙂.
parts list for pass B1 ?
Do any of you guys have a broken down parts list
for the B1 to Digikey or elsewhere.can you share
Thanks.
Do any of you guys have a broken down parts list
for the B1 to Digikey or elsewhere.can you share
Thanks.
Thanks for the quick reply.
If I got the complete part list you had a total of 41 pieces
is that right.
If I got the complete part list you had a total of 41 pieces
is that right.
- Status
- Not open for further replies.