Tram / Diamond ASM-1 Meter

[WMS]

Looking for a Manual or Schematic for a Tram / Diamond ASM-1 Automatic SWR / RF Meter.
I purchased the Meter without it's Sensor. The Meter's Sensor was designated HFS-1.
I attached a stock photo I gathered from the internet.
If anyone has a Sensor and no paperwork... If you could provide me a photo of the Sensor's Internals that would help...
I cannot find alot of info related to this Meter produced in 1978 by Tram / Diamond Corp Winnisquam, New Hampshire USA.

Bill

 

[mmoss111]

Info for ASM-1

Have you read the Google Search Patent for 4249127 ??

 

[Retro CB Guy]

Info for ASM-1

Have you read the Google Search Patent for 4249127 ??

That's awesome, good job finding that !

73's, Retro