[MRCA] [MMRCG] AN/TSM-16 or FR-114/U?
MARK DORNEY
mkdorney at aol.com
Wed May 25 10:27:46 EDT 2022
Amen, Ray
Mark D.
WW2RDO
“In matters of style, float with the current. In matters of Principle, stand like a rock. “. - Thomas Jefferson
Sent from my iPhone
> On May 25, 2022, at 8:42 AM, Ray Fantini <RAFANTINI at salisbury.edu> wrote:
>
> A common trick that was used in the old days was heterodyning. On my FR-38 it was only capable of working up to 10 MHz with the fastest tubes of the day along with switching diodes and so to extend its range they used a heterodyne plug in synced with the time base in the counter to extend its range to 100 MHz, you just had to be able to do addition in your head. And add the amount on the heterodyne plug in to the display on the counter.
> Have a video of the FR-38 in action reading a frequency on six meters at:
>
> https://www.youtube.com/watch?v=3ka1wwvex5o&t=147s
>
> Old frequency, maybe all old tube base equipment and some of the larger solid state and hybrid has a soul. Small cold LSI devices do not.
>
> Ray F/KA3EKH
>
>
> -----Original Message-----
> From: MMRCG at groups.io <MMRCG at groups.io> On Behalf Of W2HX via groups.io
> Sent: Tuesday, May 24, 2022 8:03 PM
> To: William Cromwell <wrcromwell at gmail.com>; milsurplus at mailman.qth.net; tmc at mailman.qth.net; 'MMRCG at groups.io' <MMRCG at groups.io>; mrca at mailman.qth.net
> Subject: Re: [MMRCG] AN/TSM-16 or FR-114/U?
>
>
> My plan is to put a pre-scaler divide-by-10 circuit in front of the counter. That should get me 20 MHz counting with one digit less resolution (fine by me, 20 meters is max I generally operate). Or I can do divide-by-100 for all of HF. And I think it will pair very nicely with my TMC station for frequency readout.
>
> https://nam10.safelinks.protection.outlook.com/?url=https%3A%2F%2Fw2hx.com%2Fx%2FTMC%2520Technical%2520Materiel%2520Corporation%2FTMC%2520Station%252005-2022%2F20220524_191432.jpg&data=05%7C01%7CRAFANTINI%40salisbury.edu%7C2cf3de3c3b3b42dc259e08da3de26639%7C2472f1faf24f421badd7b01c4b49be07%7C0%7C0%7C637890341204108887%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=7TMstweoksQyIW9T8am2MKBzNLHZfsffgwGxhIqO2t4%3D&reserved=0
>
> I will probably re-arrange the rack units in a different way but just for the picture...
>
>
> 73 Eugene W2HX
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>
> -----Original Message-----
> From: milsurplus-bounces at mailman.qth.net <milsurplus-bounces at mailman.qth.net> On Behalf Of William Cromwell
> Sent: Tuesday, May 24, 2022 9:45 AM
> To: milsurplus at mailman.qth.net
> Subject: Re: [Milsurplus] AN/TSM-16 or FR-114/U?
>
> Hi,
>
> I had one of those once upon a time. A few years ago I offered it for sale and eventually for free. It stayed here. I harvested some parts and scrapped the rest. I had documentation that may still be in a file cabinet. I will look later today. I used it set the tone frequency of an adjustable PL tone generator on my service bench. and to set the the adjustable tones in two-tone paging gear.
>
> Incidentally I have a mil surplus VHF/UHF CW/AM signal generator in it's shipping case - same status. It's a nice unit and I once used it often.
> I have better stuff now. I have decided what parts and sub-assemblies to keep. The bolometer in that unit is very attractive. I will make one more attempt to find that a new home. It is heavy. At my age I avoid picking it up!
>
> 73,
>
> Bill KU8H
>
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