Ldr for 250k input

Tube DIY Asylum

Do It Yourself (DIY) paradise for tube and SET project builders.

I have a pre with a phono stage that wants to see 250k from the attenuator which follows it. The stepped series pot I have is good but a 46 position ladder or ldr would give me more gradual control. I found a kit LDR with self calibration from Tortuga audio that goes up to 99k and was thinking I could slap a 150k resistor on the ground leg to get me up to 250k seeing how the output hits the grid of the buffer tube that follows. Will the blocking resistor after the LDR damage it or harm its performance?

Anyone have an idea if this sounds workable?

Chas.

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Topic - Ldr for 250k input - ChasLieb 19:28:02 06/18/15 (2)

RE: Ldr for 250k input - Caucasian Blackplate 10:12:11 06/19/15 (0)

RE: Ldr for 250k input - Abacus Music 19:46:46 06/18/15 (0)

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