Help for Revox B739

Bernhard · 27th February 2005, 05:42 PM

Hi,

I bought a dead B739 on a flea market for very cheap and one of the problems is, there is a small long pcb in the tuner part ( on the right side if you sit in front of the B739 that contains 3 metal case op amps and should contain one IF (?) filter. From this pcb also goes the two shielded cables to the delay line (?)

This filter is missing.

Anybody knows which one has to be there ?

Also the op amp in the middle gets very warm.

I put a IF filter from a Marantz receiver there and now I get a silent pink noise which is better than before because there was only very silent hum.

oldmarantz · 25th April 2005, 03:33 PM

you can find the sm here

http://www.schori.info/

I downloaded it it seems to be complete but be careful it s like a .tif I needed acdsee to open it!!

27th February 2005, 05:42 PM	#1
Bernhard diyAudio Member Join Date: Apr 2002 Location: Munich	Help for Revox B739 Hi, I bought a dead B739 on a flea market for very cheap and one of the problems is, there is a small long pcb in the tuner part ( on the right side if you sit in front of the B739 that contains 3 metal case op amps and should contain one IF (?) filter. From this pcb also goes the two shielded cables to the delay line (?) This filter is missing. Anybody knows which one has to be there ? Also the op amp in the middle gets very warm. I put a IF filter from a Marantz receiver there and now I get a silent pink noise which is better than before because there was only very silent hum.

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25th April 2005, 03:33 PM	#2
oldmarantz diyAudio Member Join Date: Dec 2002 Location: France - Lyon	you can find the sm here http://www.schori.info/ I downloaded it it seems to be complete but be careful it s like a .tif I needed acdsee to open it!!

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