[TMC] MSR-8 question

[Richard Knoppow]

     Thanks Nick and BTW I am a frequent visitor to your 
Navy radio site, lots of amazing stuff.


--
Richard Knoppow
Los Angeles
WB6KBL
dickburk at ix.netcom.com
----- Original Message ----- 
From: "Nick England" <navy.radio at gmail.com>
To: "Richard Knoppow" <1oldlens1 at ix.netcom.com>
Cc: <tmc at mailman.qth.net>
Sent: Tuesday, October 15, 2013 8:56 AM
Subject: Re: [TMC] MSR-8 question


> According to the manuals, MSR-8 (500 kc) is identical to 
> MSR-4 (455kc)
> except that the crystals are 483 & 517 kc instead of 438 & 
> 472 kc. Also the
> first oscillator in MANUAL mode (bandspread) is aligned 
> with these
> frequencies (adjust T2 & C-29). You can even see that the 
> MSR-8 manual is
> an MSR-4 one with the old frequencies whited out and 
> retyped with the new
> ones.
>
> On these converters, the IF input is untuned and the first 
> oscillator in
> CRYSTAL mode is untuned so you can install crystals to 
> cover any IF input
> from 200kc to 1.5mc. The first oscillator in MANUAL mode 
> needs to be
> aligned and requires some change of components if you get 
> too far away from
> 455kc.
>
> The MSR-3 is for 200kc IF's and has different oscillator 
> tank components
> (Z-3). I have a military MSR-3 (CV-657A/URR) but haven't 
> ever seen an MSR-8.
>
> Cheers,
> Nick K4NYW
> www.navy-radio.com/rcvr-ssb.htm
>
>
> On Mon, Oct 14, 2013 at 10:20 PM, Richard Knoppow
> <1oldlens1 at ix.netcom.com>wrote:
>
>>     One of the TMC price lists on K4OZY's web site shows 
>> an MSR-8. This is
>> described as being the same as the MSR-4 but for 500 khz. 
>> I wonder if
>> anyone has ever seen one. Presumably it was meant to work 
>> with a 51J series
>> receiver although I think there are others with 500 khz 
>> IF's. Before seeing
>> this price list I didn't know such a thing existed. I 
>> wonder if anyone here
>> has ever used one with a 51J and, if so, how it worked.
>>
>>
>> --
>> Richard Knoppow
>> Los Angeles
>> WB6KBL
>> dickburk at ix.netcom.com
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