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

Go Back   UK Vintage Radio Repair and Restoration Discussion Forum > Specific Vintage Equipment > Other Vintage Household Electrical or Electromechanical Items

Notices

Other Vintage Household Electrical or Electromechanical Items For discussions about other vintage (over 25 years old) electrical and electromechanical household items. See the sticky thread for details.

Closed Thread
 
Thread Tools
Old 18th Nov 2019, 11:30 am   #1
PJL
Dekatron
 
Join Date: Sep 2005
Location: Seaford, East Sussex, UK.
Posts: 4,663
Default Pye wireless intercom PTC1001

I bought this for 8 at a junk shop purely from curiosity as it was missing the instructions label on the bottom and I could not work out what it was for. I know now I need 2 of them to be of any use!

It is a wireless intercom that communicates over the mains wiring and includes 3 valves which I presume form an amplifier and modulator. Has anyone ever got a pair working?

This one is missing the knobs but is otherwise in very good condition and looks like something out of a 50's film.
PJL is offline  
Old 18th Nov 2019, 12:22 pm   #2
AC/HL
Moderator
 
AC/HL's Avatar
 
Join Date: Nov 2003
Location: Heckmondwike, West Yorkshire, UK.
Posts: 8,403
Default Re: Pye wireless intercom PTC1001

Instructions, cribbed from a convenient eBay posting.
Attached Thumbnails
Click image for larger version

Name:	PTC1001.jpg
Views:	126
Size:	143.7 KB
ID:	193883  
__________________
Bill, BVWS member
AC/HL is offline  
Old 18th Nov 2019, 12:54 pm   #3
Lancs Lad
Hexode
 
Lancs Lad's Avatar
 
Join Date: Oct 2018
Location: Blackburn, Lancashire, UK.
Posts: 432
Default Re: Pye wireless intercom PTC1001

Is it just me, or does having what amounts to an 'optional' earth connection seem odd to anyone else?

"Oh, you can earth it if you feel like it, but it doesn't really matter."
__________________
Best Regards,

Peter.
Lancs Lad is offline  
Old 18th Nov 2019, 1:13 pm   #4
G6Tanuki
Dekatron
 
G6Tanuki's Avatar
 
Join Date: Apr 2012
Location: Wiltshire, UK.
Posts: 8,612
Default Re: Pye wireless intercom PTC1001

Probably because back when it was made there were still loads of 2-pin power outlets (5 or 15 amp) in service, so there may have been nowhere to connect the earth!
G6Tanuki is offline  
Old 18th Nov 2019, 3:58 pm   #5
Lancs Lad
Hexode
 
Lancs Lad's Avatar
 
Join Date: Oct 2018
Location: Blackburn, Lancashire, UK.
Posts: 432
Default Re: Pye wireless intercom PTC1001

Yes, G6Tanuki, I had realised that myself!

So, in light of that fact, what was the point of providing an earth connection at all in the first place?

Any chance of a picture, please, PJL?
__________________
Best Regards,

Peter.

Last edited by Lancs Lad; 18th Nov 2019 at 4:06 pm.
Lancs Lad is offline  
Old 18th Nov 2019, 6:48 pm   #6
usradcoll1
Hexode
 
Join Date: Mar 2017
Location: Cedar Grove, Wisconsin, USA.
Posts: 497
Default Re: Pye wireless intercom PTC1001

Quote:
Originally Posted by PJL View Post
I bought this for 8 at a junk shop purely from curiosity as it was missing the instructions label on the bottom and I could not work out what it was for. I know now I need 2 of them to be of any use!

It is a wireless intercom that communicates over the mains wiring and includes 3 valves which I presume form an amplifier and modulator. Has anyone ever got a pair working?

This one is missing the knobs but is otherwise in very good condition and looks like something out of a 50's film.
They do work very well! I have a pair of the three valve units, offered as a kit. The only hitch is they have to be powered from the same live plus neutral, as they won't transmit through a distribution transformer.
The US wiring scheme is 120-N-120 single phase in many places.
There was a terminal on the chassis rear for earthing as an alternative to possibly use an earth as a transmitting means. Never tried it.
Dave, always trying something different.
usradcoll1 is offline  
Old 18th Nov 2019, 7:52 pm   #7
PJL
Dekatron
 
Join Date: Sep 2005
Location: Seaford, East Sussex, UK.
Posts: 4,663
Default Re: Pye wireless intercom PTC1001

I suspect the switch is to specify the wire the RF will be injected to. The unit itself is AC/DC.
PJL is offline  
Old 19th Nov 2019, 1:06 pm   #8
PJL
Dekatron
 
Join Date: Sep 2005
Location: Seaford, East Sussex, UK.
Posts: 4,663
Default Re: Pye wireless intercom PTC1001

Pics attached
Attached Thumbnails
Click image for larger version

Name:	PTC1001-0.jpg
Views:	119
Size:	111.1 KB
ID:	193942   Click image for larger version

Name:	PTC1001-1.jpg
Views:	118
Size:	79.3 KB
ID:	193943   Click image for larger version

Name:	PTC1001-2.jpg
Views:	117
Size:	63.1 KB
ID:	193944   Click image for larger version

Name:	PTC1001-3.jpg
Views:	114
Size:	98.6 KB
ID:	193945  
PJL is offline  
Closed Thread

Thread Tools



All times are GMT +1. The time now is 3:33 am.


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 - 2020, vBulletin Solutions, Inc.
Copyright ©2002 - 2020, Paul Stenning.