[R-390] Questions about R103 (RF gain) and about R104 and 105.

[Cecil]

Should be able to find them at Fair Radio Sales off of a scrap harness.

There are tons of parts out there it’s just a matter of finding someone willing to look and sell!

Cecil

Sent from my iPad

> On Sep 2, 2020, at 1:24 PM, hamfish at comcast.net wrote:
> 
> Hello Jacques,
> 
> You are correct in values for R103,R104, & R105. They are scarce like hen's
> teeth. In my notes R103 part # is RV4SAYSD502E. R104 &R105 the # is as
> listed in the Y2K. Sad to say, getting late in the game to repair point to
> point wiring, tube radios. 
> 
> Craig, 
> 
> -----Original Message-----
> From: r-390-bounces at mailman.qth.net <r-390-bounces at mailman.qth.net> On
> Behalf Of Jacques Fortin
> Sent: Wednesday, September 2, 2020 8:18 AM
> To: Craig <hamfish at comcast.net>
> Cc: Collins R-390 HF Receiver List <r-390 at mailman.qth.net>
> Subject: [R-390] Questions about R103 (RF gain) and about R104 and 105.
> Importance: High
> 
> Hi to all,
> 
> I began restoring a newly-acquired EAC R-390A.
> Sadly, this unit have been severely "modified" by unknown people and the RF
> gain and AF gain controls are not either original or of the right value.
> I believe that R103 have to be a 5K, 2W, reverse-log taper is it right ?
> For the R104 and 105, they have to be 2.5K, 2W, log taper ??
> Where I can find some (if not the original ones) ?
> The only ones I was able to find are linear-taper...
> 
> 73, Jacques, VE2JFE
> 
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