How to interface to the GRAM socket?

[Geaney]

Thanks Guys, The suggestion from Rob got me 90% of the way - plenty of level but not much in the way of treble. Since I had the P53 chassis on the bench I removed the .01uF shunt capacitor from the gram input and bingo, works a treat. I also discovered that part of the noise problem was radiation from the small fluorescent light on my bench. I think I'll remove that shunt cap from the other radios as well.
Cheers, John