[MAMS] Estate Stuff

[Dr. Gerald N. Johnson]

On 1/3/2014 5:21 PM, Walter Treftz wrote:
> In an estate here that we're helping with, the following items of VHF/UHF+ gear turned up.
>
> Gertsch  FM-5  Frequency Divider  200kc - 20 mhz (seems to apply to VHF/UHF ranges)

Is a frequency divider used with a 20 MHz and up heterodyne frequency 
meter such as a Gertsch FM-3 for frequency measurements down to 20 kHz. 
In 1986, Tucker Electronics was asking $75 as is. The modern 
applications are slim, but there's a potentially useful power supply and 
case.
>
> TS-403U  Pulse Generator  1750 - 4000 mhz  0-200 mv output

Is a signal generator that can be pulsed or CW. The 1988 Fair Radio 
catalog says it can be square wave or pulse modulated with RF frequency 
from 1.8 to 4 GHz, similar to an HP 616B. Some on line data hints it 
might also be known as an AN/URM61. In 1988 Fair Radio cut the price to 
$165. Its possible they still have it.
>
> General Radio  Unit IF Amplifier,  type 1216-A

The 1216A is a vacuum tube 30 MHz IF with an output meter and input 
attenuator with at least 2 MHz bandwidth. It also will power GR unit 
oscillators. When retuned to 28 MHz it is used today for looking for 
moon noise in some EME stations. The manual is available at:
bama.edebris.com/manuals/gr/1216a/

Its original application was with a diode mixer and unit oscillator for 
a bridge detector at VHF through microwave or a general purpose receiver 
using the diode mixer and a unit oscillator.

>
> They seem in good physical condx but untested (unable here as no freq-compatible
> gear)  If anyone has a burning desire to have any of them, make a reasonable offer. Otherwise
> they're headed for the junkyard as nobody around here knows what they do, let alone if they do it.
> Located in northern Florida.
>
> 73
> Walt (N4GL)
>