HOW's your LINEAR ?

Check for linearity, bias, flat topping and carrier balance with a
TWO  TONE  OSCILLATOR, two (or single) 100 mV audio tones, diagnostic oscillograms, needs 9 V at 5 mA or internal battery, 4 x 7 x 13 cm, 200 g.

"very pleased", BM in Limerick, Eire.

This fun-to-build kit includes ALL parts, case, screws, wire etc, printed circuit is tinned, drilled fibre glass, and the detailed assembly and operating instructions include a circuit diagram and description.