RE: I'm looking for a Variac now

Posted by drlowmu (M) on July 24, 2012 at 19:17:26

In Reply to: I'm looking for a Variac now posted by jedrider on July 24, 2012 at 07:48:11:

No, one is not a replacement for the other !! A variac is OK, useful tool for trouble shooting, especially when you are blowing fuses.

It is dead a** easy to lift one leg of a Rk, and see how the Rk measures, when the tubes are out and when one end of the Rk is out of the circuit.

WAIT !!! You told me that the Rks already measure the same. WTF ???

IF you didn't lift one end of them, your reading is likely BOGUS. Not seeing the schematic, I have to say "likely" as a qualifier. Not lifting a leg sure screwed up my resistance readings on a speaker crossover two months ago !!!

Got it, try the 30 Ohm one, LIFT one leg and remeasure and TELL us if it is still 30 Ohms.

'Bet you a Starbuck's Coffee Frappuccino it will magically measure and "become" 10 Ohms nominal !!

Jeff Medwin

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Follow Ups Full Thread

Topic - I am shocked! - jedrider 16:31:58 07/21/12 (24)

RE: I am shocked! - griboon 17:00:52 08/13/12 (0)

Follow-up! - jedrider 11:32:59 08/13/12 (0)

Solution in sight! - jedrider 22:40:28 07/21/12 (12)

RE: Solution in sight! - drlowmu 23:01:50 07/21/12 (11)

Not a Happy Ending - jedrider 16:27:15 07/22/12 (7)

Sorry to hear it - 1973shovel 17:11:22 07/22/12 (5)

I'm looking for a Variac now - jedrider 07:48:11 07/24/12 (4)

RE: I'm looking for a Variac now - drlowmu 19:17:26 07/24/12 (3)

Calm down - jedrider 07:09:12 07/25/12 (2)

RE: Calm down - Tre' 19:30:27 07/26/12 (0)

Calmed - drlowmu 16:05:20 07/25/12 (0)

Sorry, but the fat lady ain't yet sung...... - drlowmu 17:03:27 07/22/12 (0)

RE: Solution in sight! - Jim McShane 11:21:59 07/22/12 (2)

RE: Solution in sight! - drlowmu 12:36:21 07/22/12 (1)

RE: Solution in sight! - Jim McShane 13:35:59 07/22/12 (0)

RE: I am shocked! - drlowmu 18:05:55 07/21/12 (2)

RE: I am shocked! - jedrider 18:42:34 07/21/12 (1)

Lift a LEG !!!@!!!!@!!! - drlowmu 18:52:31 07/21/12 (0)

RE: I am shocked! - Chris O 17:12:17 07/21/12 (5)

RE: I am shocked! - Jim McShane 11:26:39 07/22/12 (4)

RE: "a 1 watt film resistor should do quite well" - 1973shovel 12:29:16 07/22/12 (3)

RE: "a 1 watt film resistor should do quite well" - TimFox 12:30:37 07/26/12 (0)

RE: "a 1 watt film resistor should do quite well" - Jim McShane 13:35:08 07/22/12 (1)

RE: "Put a scope probe on the cathode pin of the power tube " - 1973shovel 13:59:03 07/22/12 (0)

Follow Ups

RE: I'm looking for a Variac now - drlowmu 19:17:26 07/24/12 (3)

Calm down - jedrider 07:09:12 07/25/12 (2)

RE: Calm down - Tre' 19:30:27 07/26/12 (0)

Calmed - drlowmu 16:05:20 07/25/12 (0)

RE: I'm looking for a Variac now

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