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Phono amp Raytheon 6418 tubes

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This is my first post on the tube forum, quite possibly there is no answer for this.

I was wondering if any body knows if there are any schematics for phono pre amps built around the Raytheon 6418 sub miniature pentodes.

There is a mic amp, and headphone/pre amp available from Oatley electronics in OZ.

The above ones work on battery power and by all accounts actually sound rather good.

I suspect they may also work well for phono use, probably with boosting via and IC.
 
Thanks for the tip Studeb, that is a recent addition I knew nothing about and I suspect it might work quite well, plenty of scope for modding and the price is sweet too.

I will order one and build it up.

I think I can keep the microphonics under control and balancing channels will be easy enough.
 
Progress

Thanks for the tip Studeb, that is a recent addition I knew nothing about and I suspect it might work quite well, plenty of scope for modding and the price is sweet too.

I will order one and build it up.

I think I can keep the microphonics under control and balancing channels will be easy enough.

Hi Zero One,

any progress with this? I did see that the guys at the Melbourne Audio Club built one with upgraded components and an improved power supply and noted:
I would say whichever way you go on to build the kit, you will not be disappointed. In a blind listening test the basic kit outperformed two Cambridge phono preamps and a Hafler phono preamp in front of six very critical listeners of the Melbourne Audio Club, across three different turntables and cartridges. Impressive!
 
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