On Saturday, 16 February 2019 00:28:59 UTC, Phil Allison wrote:
tabby wrote:

I was offered a 1940s Cossor recently for £20-30.

** So they were offering to PAY you to take the POS away ?

Vintage scopes have market value for collectors.

If all you're doing is audio, any halfway sane scope will do that,
even that Cossor.


** Absolute ********.

Audio is ELECTRONICS, not sound.

no kidding

The range of frequencies found in audio electronics extends to frequencies of many MHz. Domestic AM and FM radio deceivers are considered "audio".

Radio microphones are considered "audio".

I'd call those radio myself

Faulty ( or badly designed / built ) audio amplifiers may exhibit oscillation upto 50MHz.

which can be found on a low speed scope with a capacitor & diode

Digital audio seems to know no bounds.

though it doesn't normally tax any sane scope. The 200kHz toy scope it may do, but for some hobbyists it may be good enough. Then there are smpsus.


NT