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 > General Vintage Technology > Components and Circuits


Components and Circuits For discussions about component types, alternatives and availability, circuit configurations and modifications etc. Discussions here should be of a general nature and not about specific sets.

Thread Tools
Old 10th Jul 2024, 8:46 pm   #21
Join Date: Feb 2007
Location: Lynton, N. Devon, UK.
Posts: 7,165
Default Re: Mercury Relays - help needed

Mercury-wetted relays can give an astonishingly fast rise or fall time to a level change - almost sub-nanosecond if appropriately coupled to a coax cable or transmission line. They can't switch at more than 100Hz (and that's really pushing it!) but the bounce-free transition is in a league of its own.
kalee20 is offline   Reply With Quote
Old 11th Jul 2024, 4:52 am   #22
Join Date: Jun 2015
Location: Biggin Hill, London, UK.
Posts: 5,310
Default Re: Mercury Relays - help needed

There was a Tektronix test plugin unit for the 500 series 'scopes that used a mercury wetted relay run off the AC heater supply (maybe half-wave rectified, I forget) to send fast rise time pluses into the main 'scope Y amplifier.

Smaller mercury relays were used on teleprinter lines up to at least 200 baud.
TonyDuell is online now   Reply With Quote

Thread Tools

All times are GMT +1. The time now is 12:44 pm.

All information and advice on this forum is subject to the WARNING AND DISCLAIMER located at
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 - 2024, Paul Stenning.