There was only one response to this so I have today sent them all to that member.
I still have plenty of input stage houses left if anyone needs some
Does anybody have a pair of Calvin Buffer boards including matched transistors idling around in a shelf or a drawer that aren't needed?
I'd be happy to give them a new home.
I'd be happy to give them a new home.
Boards: yes, transistors not.
I can send you them, you just have to pay postage.
PM me if interested.
I can send you them, you just have to pay postage.
PM me if interested.
I have a couple is built boards from Juachim Gerard circa 2016. I would have to check exactly what they are
These are phono stage boards "without" the supply regulators, and with the regular output stage.
(Yes, we made phono-only boards as well as regulator-only boards back in the days..... the majority however was the complete thing on one PCB)
@ stephan, you have the regular boards (albeit V2), with the "normal" output drivers but including the supply regulators.
I find it quite surprising which boards are surfacing, and where 😀 It seems that - so far - the V3 boards are not coming up much for sale / swap, might be an indication that people are happy with them.....
(Yes, we made phono-only boards as well as regulator-only boards back in the days..... the majority however was the complete thing on one PCB)
@ stephan, you have the regular boards (albeit V2), with the "normal" output drivers but including the supply regulators.
I find it quite surprising which boards are surfacing, and where 😀 It seems that - so far - the V3 boards are not coming up much for sale / swap, might be an indication that people are happy with them.....
😀 believe me I know the feeling..... having a "few" unfinished projects lying around myself.... latest example being a valve phono stage I am working on since 2012(!)..... just not enough hours in the day!
Interesting you got them from Joachim. As I had organized the group buy, I know that most people bought one set, but there were a few people who bought more, I think the highest number was 5 sets, so I am pretty sure there must still be boards circulating somewhere that have not been assembled yet.
IMHO, thorough cleaning before assembly (to make sure those solder joints work) will help a lot!
I had a couple of sets of main boards only, and one set of just the shunt. I still use one of the shunts for testing the back end of boards as I build them.
I've got three sets of full boards left. 1 built, 2 part stuffed. Thatll make 54....
I've got three sets of full boards left. 1 built, 2 part stuffed. Thatll make 54....
I'm still struggling with a Hum on the left channel (and I think a very minor buzz on both channels). Using a Michell Gyrodec with an RB300 tonarm, which uses the left RCA shield as its GND. So the GND channel causes hum.
- The Gyrodec chassis is connected to tonearm GND, but not to mains earth.
- Paradise is a 2-box, 1-transformer setup. The signal GND is connected to chassis/mains earth via a 10k resistor.
- Preamp (aikido 24V) is floating
- I don't recall the grounding scheme of the Pass F5 which forms the power amp.