Posted by muman [ 12.73.207.181 ] on May 13, 2005 at 18:50:51:

In Reply to: Sorry, you're wrong posted by Triode_Kingdom on May 13, 2005 at 13:50:14:

Let me guess --- this RIAA circuit is something you do.

The best tuner capacitors are sealed and use a real vacuum. Those tuner caps in old radios *are* the cause for drifting. Ceramic capacitors weren't usually in them, mica was. Some old tubular ceramic capacitors were used, but they didn't drift like disc ceramics.

Better tuner caps use mica or poly film between plates. Better still to tune with a crystal or a digital synthesizer. Leave the tuner caps for use as long wire resonators aka antenna tuners.

Replies:

• Re: Sorry, you're wrong, with references - muman 00:31:58 05/14/05 (11)
  • Your references say nothing about air because ... - Triode_Kingdom 00:11:08 05/15/05 (10)
    • Do whatever you want. - muman 01:17:37 05/15/05 (9)
      • Re: Do whatever you want. - manualblock 07:06:32 05/15/05 (8)
        • Re: Do whatever you want. - muman 19:46:52 05/15/05 (7)
          • I always do - Triode_Kingdom 01:20:32 05/16/05 (6)
            • References - muman 02:19:44 05/16/05 (5)
              • Re: Reference - "Valve Amplifiers 3" - Damir 06:54:27 05/16/05 (3)
                • "Electrical breakdown is not always associated with high voltage" - muman 22:12:20 05/16/05 (2)
                  • Air Caps, Right Here, Get 'em While they're Hot!!! - Triode_Kingdom 01:39:44 05/17/05 (1)
                    • Re: Get 'em While they're Hot!!! - muman 23:25:08 05/17/05 (0)
              • Re: References - manualblock 06:48:17 05/16/05 (0)