[Boatanchors] Acquired a 'dream rig' Collins 51j-4

[Richard Knoppow]

    The Treetop Circuits PD and slow AVC is excellent and very 
easy to install. You lose the noise limiter, not big deal since 
it does not work well for CW or SSB.

     Don't bother with the Lankford mods, they are very poor, 
especially the AVC mod, which causes popping.

On 6/3/2022 11:07 AM, W2HX wrote:
> You may want to install a product detector so you can use it with SSB. As it has a 500 kHz IF you might have a hard time finding an external product detector but I think treetop circuits might have something. There is also a Dallas Lankford modification to add SSB to a 51J4. That is what I have in my 51J4
> 
> 73 Eugene W2HX
> Subscribe to my Youtube Channel: https://www.youtube.com/c/w2hx-channel/videos
> 
> 
> 
> -----Original Message-----
> From: boatanchors-bounces at mailman.qth.net <boatanchors-bounces at mailman.qth.net> On Behalf Of Karel Jennings
> Sent: Friday, June 3, 2022 9:14 AM
> To: boatanchors at mailman.qth.net
> Subject: [Boatanchors] Acquired a 'dream rig' Collins 51j-4
> 
> Well, Thanks to a very good friend in the USA, I just won a Collins 51J-4 in the Schulman auction.
> 
> It's intended to be the companion receiver to the Central Electronics 100V that I'm in the midst of refurbishing.
> 
> So, I'll do the usual going over the radio etc etc.
> 
> Is there anything that is a known pain point with these rigs? Like caps that are known to go bad etc?
> 
> --Karel VE3KJX
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-- 
Richard Knoppow
1oldlens1 at ix.netcom.com
WB6KBL