[Milsurplus] R1451A/WLR-6 - One More Time

[Bill Cromwell]

Hi Mike,

Somebody has offfered some dual gate FETs. If he can't find his - well I 
will be looking for mine. I have some newer ones with the die in a pill 
the terminals in cross shape. I don't recall the form factor ID. They 
are NOT surface mount parts. I have to keep the few older ones I have as 
spares for my own gear. Between (among) us we have what you might need.

73,

Bill  KU8H

On 7/7/19 11:43 AM, Mike Feher wrote:
> Hi Bill –
> 
> As far as I recall there were no diodes. I believe two of the receiver 
> front ends I blew up myself. For me the problem happened when I tried to 
> run the receivers off of house AC. My thoughts at the time was that 
> there was too much leakage current through the PS. I had too many other 
> projects going on simultaneously to pursue just this. However, while I 
> had a few working I was impressed and loved the smoothness of the 
> tuning. – 73 – Mike
> 
> Mike B. Feher, N4FS
> 
> 89 Arnold Blvd.
> 
> Howell NJ 07731
> 
> 848-245-9115
> 
> -----Original Message-----
> From: milsurplus-bounces at mailman.qth.net 
> <milsurplus-bounces at mailman.qth.net> On Behalf Of Bill Cromwell
> Sent: Sunday, July 7, 2019 11:25 AM
> To: milsurplus at mailman.qth.net
> Subject: Re: [Milsurplus] R1451A/WLR-6 - One More Time
> 
> Hi,
> 
> Do they have the pair of protective diodes across the receiver input? I 
> have had those do their duty protecting the front end by puncturing the 
> junction and shorting the input to ground. It is cheaper and easier to 
> replace the fried diodes that to repair or replace the front end of the 
> receiver. Have a look there when you find the schematics. Maybe you can 
> sort that out without the schematics. I found them on one radio without 
> looking at the schematics. They will be the very first the signal sees 
> when it gets to the receiver.
> 
> 73,
> 
> Bill  KU8H
> 
> On 7/7/19 11:06 AM, Mike Feher wrote:
> 
>  > Hi Al –
> 
>  >
> 
>  > I think I have four of these WLR-6 receivers. They are great, but, all
> 
>  > of mine has a bad front end, which if I remember correctly is a dual
> 
>  > gate FET. I also have the schematics someplace that I have not seen in
> 
>  > many years. 73 – Mike
> 
>  >
> 
>  > Mike B. Feher, N4FS
> 
>  >
> 
>  > 89 Arnold Blvd.
> 
>  >
> 
>  > Howell NJ 07731
> 
>  >
> 
>  > 848-245-9115
> 
>  >
> 

-- 
bark less - wag more