Rebirth of Studer C37

[Ki Choi]

Ki,
If your Studer C37 ever misses Europe, I offer to host it for a long stay. And it will be in good company with my two A80s and a few Revox's ... As I still have a few Swiss franc coins and bank notes around since my last visit to Switzerland, it will feel at home!
Congratulations!

The 85A2/CV449 and the E130L/7534 are easy to get in Europe , e.g. at Billigton Export UK

http://www.tube-and-valve-electronics.co.uk/default.asp

Great, I will check them for the tubes also.

Guess, if the C37 would visit you in Portugal, I wouldn't have to look for the European version of PS Audio P300 and send it along...

[flez007]

Very nice unit Ki, are you going to re-wire to use an external preamp or leave it as-is?, it does look cool! - and of course will check with my local valve providers for those weird models you might need.

[Fred]

Very nice looking deck. BTW, do you know what the production year is for that model? Just curious.

[microstrip]

(...) To answer Roger's question from the other thread regarding input power, the machine is an European version with 220VAC 50Hz. My solution is to use a PS Audio P300 power regenerator that will take 120VAC input and will output 220V 50hz. Only the P300s shipped to outside of US can output at 220VAC. Otherwise, I have a 1KVA step-up transformer that can take US version P300 with 120V 50Hz output and bring it up to 220V 50hz. It would have been ideal to have the US (or Taiwan/Korean) version C37, but I should be happy with what I have.

Thus, if our European WBF members can help me source a P300 from there, I would be much appreciated.

Ki,

Unhappily the 240V P300 is very difficult to get in Europe. But the 240V P300 is just a normal P300 with a step-up 115/230V transformer. I have owned one longtime ago and for some time used it to power some 110V 60 Hz equipment bypassing the output transformer.

BTW, you can build a 240V /50 Hz generator very easily with a low quality 500W power pro-amplifier, two 115/60V 300W power transformers with the 60V windings in parallel and the 115V ones in series, and an MP3 player playing continuously a 50Hz tome. Or just build one as described in P. Horowitz "The Art of Electronics".

BTW2, surely you know this link, but other members can be interesting page about rebuilding a C37.http://forum.studerundrevox.de/viewt...3d642f541bba1e

[mep]

Ki-I checked through my tube stash and I don't have either one of those tubes.

Mark

[Ki Choi]

Ki-I checked through my tube stash and I don't have either one of those tubes.

Mark

Hi Mark,

Thanks for checking.

I have a lead on a PS Audio P300 from Bulgaria...to power the C37 so that rebuild of the electronics can begin. Shipping would be a killer...

[jdza]

Ki

Watch out for the 230V P300. Of all the ones sold in this country only one is still running .The others all failed. The one still running powers only a turntable motor. It cannot deliver close to the 300W in the 230V guise. I honestly don't think it wil last with the 250VA the C37 consumes. You may be much better of with the P600.

BTW nothing against PS Audio. The current P10 made a huge difference in my system as did the PPP before it.

[microstrip]

Ki

Watch out for the 230V P300. Of all the ones sold in this country only one is still running .The others all failed. The one still running powers only a turntable motor. It cannot deliver close to the 300W in the 230V guise. I honestly don't think it wil last with the 250VA the C37 consumes. You may be much better of with the P600.

BTW nothing against PS Audio. The current P10 made a huge difference in my system as did the PPP before it.

Very true. Some P300 had fans (unhappily they were noisy), but some others did not have - only the place to fit them. At 200W load (~0.8A) it heated a lot - the only heat-sink is the outer box.

[Ki Choi]

Ki

Watch out for the 230V P300. Of all the ones sold in this country only one is still running .The others all failed. The one still running powers only a turntable motor. It cannot deliver close to the 300W in the 230V guise. I honestly don't think it wil last with the 250VA the C37 consumes. You may be much better of with the P600.

BTW nothing against PS Audio. The current P10 made a huge difference in my system as did the PPP before it.

Thanks for the info.

I will look for a P600 instead. In the meantime, I found a 1KVA step up trasnformer just to get it going even with wrong capstan speeds.

Ki

[Ki Choi]

Very nice looking deck. BTW, do you know what the production year is for that model? Just curious.

I believe the recorder was an earlier version before 1964. I'll have look into it further based on its serial number.