DOWNLOAD: SimpleTubeAudioOsc
Im back from 2 weeks in Japan, time that I primarily spent hunting for records.…
On Friday June 30 LoveAllDay Records will release my new LP "Secular Music Group Volume 1"on vinyl…
This month's Preservation Sound Radio program will air tonight Tuesday May 21 at 8:30 PM.…
This month on Preservation Sound Radio: nine side-filling tracks from 1970 thru 1986, all from…
This month's show airs Tuesday 2.20.24 at 8:30PM -11:25PM EST on WPKN 89.5 FM in…
The first Preservation Sound Radio program of 2024 will air Tuesday January 16 at 8:30PM…
View Comments
The 6SN7 is a highly desireable tube and should not be used frivolously.
Plus, why on earth would anyone build a tube audio oscillator when HP 200s and their clones are widely available, cheap, and superb? Coals to Newcastle and all that.
That Collins transmitter on the cover would be worth a lot of money today. So would the receiver off on the right.
Note also in this oscillator, the frequency setting element is a pair of pots rather than a capacitor or PTO/inductor. The frequency stability is going to be terrible. remember, the Wien bridge only oscillates when gain is exactly at a certain figure. Commercial audio oscillators were of the heterodyne type until Dave and Bill figured out how to use a light bulb as a stabilizing element. This made them multimillionaires and built an electronic empire that lasted until the Broad Restructuring and the spinoff of Agilent.