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Old 1st December 2013, 12:41 PM   #3471
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Quote:
Originally Posted by stajo View Post
Neat. What is the L values in filament chokes?
0.7 Hy / 1A as shown in the photo.

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Old 1st December 2013, 01:15 PM   #3472
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Originally Posted by merlin el mago View Post
Works:Pia no::che ers:
Where was the problem please??
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Old 1st December 2013, 02:27 PM   #3473
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I guess a cold joint in the RCA input.
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Old 2nd December 2013, 01:28 AM   #3474
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Old 28th December 2013, 11:12 AM   #3475
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I have to take off the 100K grid leak resistor if I want to use 50K ladder attenuator or have I to left?
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Old 28th December 2013, 11:52 AM   #3476
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Hi! Merlin,

Tough that you have your AVC already ?
Why putting a 50k pot ?

Cheah
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Old 28th December 2013, 12:59 PM   #3477
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Hi Cheah,

I only want to check if my TVC lack of bass.
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Old 28th December 2013, 01:10 PM   #3478
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Merlin,

Did you put your AVC at the input or output (after the opt)?

Cheah
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Old 28th December 2013, 01:29 PM   #3479
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with 100k in place as // 50k the total will be 33k .... not a problem if the source can drive it,btw not low ....
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Old 28th December 2013, 02:14 PM   #3480
CSlee is offline CSlee  United Kingdom
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Taking some time to address the grounding in my #26 preamp as there is some noise, and I got some interesting results with the frequency response.

There is a large peak at about 70KHz. If possible it would be great to get some insight on what might be causeing the instability. Has anyone else seen similar results...?

Setup is very simple - filament bias, LL1660 output

Thanks
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