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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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In Reply to: RE: adapting a design to a different opt posted by sser2 on September 25, 2017 at 20:06:54:
"If you want to build around your Hammond transformer, use tubes that require low load impedance, like 50L6 or 6Y6, and lower B+ voltage."
The tubes don't determine the operating impedance of the circuit. That's created by the load reflected back to the tubes from the speaker. The 125E provides multiple primary impedances from 3K to 22.5K with an 8 ohm speaker. I assume that the specification of 2.99H is measured across the highest impedance option, and that the inductance decreases as lower ratios are selected. This is wholly inadequate for hi-fi use; best relegated to a communications receiver or answering machine.
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- RE: adapting a design to a different opt - Triode_Kingdom 22:54:09 09/25/17 (0)
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