UK Vintage Radio Repair and Restoration Powered By Google Custom Search Vintage Radio and TV Service Data

Go Back   UK Vintage Radio Repair and Restoration Discussion Forum > Specific Vintage Equipment > Vintage Amateur and Military Radio

Notices

Vintage Amateur and Military Radio Amateur/military receivers and transmitters, morse, and any other related vintage comms equipment.

Closed Thread
 
Thread Tools
Old 29th Aug 2020, 9:37 am   #1
Jon_G4MDC
Nonode
 
Jon_G4MDC's Avatar
 
Join Date: Nov 2015
Location: Welwyn Garden City, Hertfordshire, UK.
Posts: 2,013
Default PMR Crystal Modules - ID?

Does anyone recognise these and perhaps could identify to what equipment they belong please? Thanks in advance.
Attached Thumbnails
Click image for larger version

Name:	PMR_xtal_modules.jpg
Views:	166
Size:	60.1 KB
ID:	214538  
Jon_G4MDC is offline  
Old 29th Aug 2020, 11:51 am   #2
Stockden
Heptode
 
Join Date: Mar 2008
Location: Forest of Dean, Gloucestershire, UK.
Posts: 647
Default Re: PMR Crystal Modules - ID?

Perhaps one of the Storno PMRs? They look similar to the modules used in the 600 series.

Hugh
Stockden is offline  
Old 29th Aug 2020, 2:57 pm   #3
Jon_G4MDC
Nonode
 
Jon_G4MDC's Avatar
 
Join Date: Nov 2015
Location: Welwyn Garden City, Hertfordshire, UK.
Posts: 2,013
Default Re: PMR Crystal Modules - ID?

Storno went through my mind when I first saw them. The crystals are HC18/U size so it was my guess that would be for a handportable rather than a mobile.

They are wire ended for soldering rather than plug in I suspect, unless the leads have yet to be trimmed. They are ~30mm long.

I think that frequency pair might once have been the UHF demonstration channel. They would make a pair of sets back to back with 5MHz between TX and RX.
Jon_G4MDC is offline  
Old 29th Aug 2020, 4:19 pm   #4
Stockden
Heptode
 
Join Date: Mar 2008
Location: Forest of Dean, Gloucestershire, UK.
Posts: 647
Default Re: PMR Crystal Modules - ID?

Is there anything printed on the cases?
Stockden is offline  
Old 29th Aug 2020, 9:19 pm   #5
Mascot-22
Triode
 
Join Date: Oct 2018
Location: Halesowen, West Midlands, UK.
Posts: 24
Default Re: PMR Crystal Modules - ID?

My first thought was the Storno 600 series.
Looking through a box of Storno spares they use a HC25 plug in crystal.

Low Band type Rx OX 632 , Tx OX 631a
UHF type Rx OX611a , Tx OX 611a

Paul
Attached Thumbnails
Click image for larger version

Name:	CQM624.jpg.jpg
Views:	63
Size:	43.1 KB
ID:	214595  
Mascot-22 is offline  
Old 31st Aug 2020, 5:12 pm   #6
Jon_G4MDC
Nonode
 
Jon_G4MDC's Avatar
 
Join Date: Nov 2015
Location: Welwyn Garden City, Hertfordshire, UK.
Posts: 2,013
Default Re: PMR Crystal Modules - ID?

Thanks. Storno 600 is quite similar but not the same - the module is rather larger.
The crystals themselves are wire ended so HC18U or similar.
Jon_G4MDC is offline  
Closed Thread

Thread Tools



All times are GMT +1. The time now is 1:37 pm.


All information and advice on this forum is subject to the WARNING AND DISCLAIMER located at https://www.vintage-radio.net/rules.html.
Failure to heed this warning may result in death or serious injury to yourself and/or others.


Powered by vBulletin®
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Copyright ©2002 - 2023, Paul Stenning.