Newmarket
Well-known member
Hello 'Hive'
So I know lots around opamps / impedance / 'balancing' etc etc - it's how I earn a crust - but I'll happily admit that magnetics - and in the context here Audio Transformers -is not an area where I have a lot of expertise.
But over the last few years I've used more transformers for isolation and Impedance transformation (eg DI) purposes on a personal/hobby level.
So I've picked up a few 'mystery transformers' that I haven't been able to find a lot (or any tbh) info' on.
First up - this one - (see pics).
I can't take any Inductance measuremnts atm - but could next week when back at work - but the DCRs are:
On the two terminal side (designated HT+ / Plate) = 452 Ohm
Three Terminal Side: (designated G/LT/G) = 176.8 / 223.2 Ohm (G to G = 400 Ohm)
Any info' / advice appreciated.
Apart from that it's just aesthetically pleasing
So I know lots around opamps / impedance / 'balancing' etc etc - it's how I earn a crust - but I'll happily admit that magnetics - and in the context here Audio Transformers -is not an area where I have a lot of expertise.
But over the last few years I've used more transformers for isolation and Impedance transformation (eg DI) purposes on a personal/hobby level.
So I've picked up a few 'mystery transformers' that I haven't been able to find a lot (or any tbh) info' on.
First up - this one - (see pics).
I can't take any Inductance measuremnts atm - but could next week when back at work - but the DCRs are:
On the two terminal side (designated HT+ / Plate) = 452 Ohm
Three Terminal Side: (designated G/LT/G) = 176.8 / 223.2 Ohm (G to G = 400 Ohm)
Any info' / advice appreciated.
Apart from that it's just aesthetically pleasing
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