UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

G6Tanuki · 20th Dec 2018, 12:42 pm

I've used an ECC83 multivibrator in the past: mine was designed to oscillate around 10KHz when running by itself, but was then 'locked' to a 100KHz crystal-oscillator (by injecting a whiff of the 100KHz into one of the ECC83's grids) to provide me with accurate 10KHz calibration 'pips' when aligning receivers.

20th Dec 2018, 12:42 pm	#3
G6Tanuki Dekatron Join Date: Apr 2012 Location: Wiltshire, UK. Posts: 13,996	Re: Valve Multivibrator I've used an ECC83 multivibrator in the past: mine was designed to oscillate around 10KHz when running by itself, but was then 'locked' to a 100KHz crystal-oscillator (by injecting a whiff of the 100KHz into one of the ECC83's grids) to provide me with accurate 10KHz calibration 'pips' when aligning receivers.