[ARC5] Hello R1155 Fans

[Christopher Bowne]

I recall the same manual RF gain related frequency pulling in my EH Scott SLRM receiver, it was very annoying.  IIRC (it’s been over 50 years now!) I corrected it by taking the mixer tube off the RF manual gain circuit and ran it (AFAIK it’s still that way) at fixed gain.  The Scott was given to me by my grandfather in 1964 and it is still working well with only a few component failures over the years.

73 de Chris AJ1G Stonington CT

And Merry Christmas!

Sent from my iPhone

> On Dec 18, 2022, at 12:59, David Stinson <arc5 at ix.netcom.com> wrote:
> 
> Been working on a "Christmas Present" U.K. R1155
> receiver.  Playing nicely now, but still have
> some issues:
> https://photos.app.goo.gl/WiPupJQ7bf6hwCNC7
> 
> It's running on well-regulated 135VDC B+.
> When I'm not using AVC, turning the gain control
> pulls the local oscillator.  When using AVC,
> it doesn't.  Before I start digging-in, is
> this something you've seen before?
> 
> Also- I need to remove the front bezel in
> order to change the discoloured Perspex window.
> On the "old" tuning knob, one removed the logging
> ring around the tuning knob and the assembly came
> off without disassembling the tuning knob/drive.
> 
> This N-model has the "new" tuning drive:
> https://photos.app.goo.gl/EJQymom4vM9PSDGc8
> Does someone know the proper procedure for
> pulling this bezel?  I don't want to assume
> or "by guess and by golly" if I can prevent it.
> There appear to be screws to secure the drive which
> come from the inside of the bezel.
> 
> Thanks, everyone.
> 73 Dave AB5S
> 
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