Radford Low Distortion Oscillator Series 2

[paulcscheung]

looking for any service info or schematics for this Instrument., pic below.

Output metering and attenuation is working, 'Low Distortion' and 'squarewave' switches when engaged give no output and the sinewave output has asymetric clipping as in the 'scope image below.

Any info or assistance in restoring this appreciated
Mik

Are you still looking for this schematic?

 

[audiomik]

Are you still looking for this schematic?

Thanks, have a full schematic which I understand may now be posted on the Yahoo - Radford Group

Mik

 

[delvaje]

radford LDO

Does anyone know the data of the thermistor used and the availability of it and where to get it ??

 

[BSST]

Hi delvaje,

In Dec. 2019, a diyer was trying to locate a replacement thermister for a Leader audio generator. I don't know the outcome, but you could try comparing notes. He may good insights to offer.

Good luck!

Leader LAG-120A thermistor replacement