As I now know that I prefer my valve/hybrid pre this is up for grabs.
I have replaced the power supply caps , some tantalum caps and a couple of resistors.
one rca/phono socket was broken off when I got this so I’ve now replaced several as they were an awful tapered type.
This is surprisingly heavy and given its rarity its for collection only ( Buckinghamshire ) I may post/ship at a push.
MM/MC
There is a switch on the side which Ipresume is for different cartridges ( 1mv and 5mv ) this is factory standard.
I have no means to test the apparently very good phono stage .
The lettering has worn away around the volume knob.
£450
I have replaced the power supply caps , some tantalum caps and a couple of resistors.
one rca/phono socket was broken off when I got this so I’ve now replaced several as they were an awful tapered type.
This is surprisingly heavy and given its rarity its for collection only ( Buckinghamshire ) I may post/ship at a push.
MM/MC
There is a switch on the side which Ipresume is for different cartridges ( 1mv and 5mv ) this is factory standard.
I have no means to test the apparently very good phono stage .
The lettering has worn away around the volume knob.
£450
Attachments
Can you remove the shield over the MC circuit, so we might see if its IC or discreet?
R
R
UA 709 or something akin to that one. Remember, it`s -75 vintage. Not exactly the apex of IC design.
R
R
Military spec perhaps 🙂
Even today such things as 741's are still available in T05 (or more correctly T099) outline and to a higher spec than the cooking grade plastic DIP outline.
This unit was produced according to the technologies Dieter
Burmester learned in his prior job in medical instrumentation.
Burmester learned in his prior job in medical instrumentation.
With only the backside to look at it was a guess. Nothing more, nothing less.
Btw, I wasn’t aware that medical instrumentation necessarily sounded good. It should cater to DC and low frequency signals.
However, I can definitely be wrong.
R
Btw, I wasn’t aware that medical instrumentation necessarily sounded good. It should cater to DC and low frequency signals.
However, I can definitely be wrong.
R
Off topic here, using quality parts and professional knowledge is a good idea in my view.
There are different areas of instrumentation, not only LF. I did not talk about sound.
There are different areas of instrumentation, not only LF. I did not talk about sound.
The first sentiment I wholeheartedly share.
But what’s the purpose of using medical instrumentation if not for sound or longevity?
R
But what’s the purpose of using medical instrumentation if not for sound or longevity?
R