[Test-Equipment] Telonic 1205A Sweep Signal Generator

[Terry Martin]

I have recently aquired a nice example of the above sweep oscillator
covering the range 1 to 1500 MHz. It has the option of installing upto 7
birdy marker modules of either the single frequency type (Model 8015) or
harmonic type (Model 8020). Unfortunately, none are installed! Does anyone
have some gathering dust (preferably the harmonic type) or knows where they
might still be obtained. Failing that, a circuit diagram so that I can
construct them. They appear to consist of a crystal oscillator, mixer and
amplifier (+ harmonic generator for type 8020). Any info most welcome.
	Terry, M0CLH (United Kingdom)