Re: 'I.F Alignment Aid'
The BVWS Bulletin volume 29, number 3 (Autumn 2004) published a design I tweaked slightly from an old RSGB circuit and had published (with RSGB agreement) in the Bulletin. It's a solid-state wobbulator suitable for valve or transistor sets with an IF of anything between about 500 and 600 kHz.
It's got a pip-maker input for centring the curve, along with variable amplitude.
Ian
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