ELK Viking 50 bias problems?

[Madison]

Bought the only two cheap MM they had.
One digital and one with a needle.
Same results.
Can't find the specs on the input..... probably to cheap to list.

Put the 20K ohm resistors back in.
Played it cranked for an hour.
No red plating.
No shorting on the tubes.
Nothing getting hot beyond the touch.
Sounds good.

Got the Tremolo working properly.

Maybe the OT is bad or close to it?
They positioned it RIGHT next to the EL34s and it has no steel casing.

Heck, maybe a bunch of stuff is bad.

I'm thinking to just let it go with this set up and no guarantees.

Definitely plays and plays way better than it did.

Got no more time or budget to put into this.
Thanks for all the help!

If anyone has any finial thoughts, appreciated.
This problem will be going away tomorrow.

[PRR]

You want >10Meg input.

Home-center sells stuff good enough for house-wiring and trailer-lights, but not necessarily for tube grids.

Do any of these meters have specs names model numbers? (I can't see your bench from here, and have been too polite to demand basic info.)

[Madison]

Had to take a nap and get away from this.

>>You want >10Meg input.

Here are all the specs I can find on these.

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DMM=
K Plus Build Digital Tester M300
(I believe this is a Mastech M-300)

Pocket size DMM
• DC voltage: 2V ± 0.5%, 20/200/500V ± 0.8%
• AC voltage: 200/500V ± 1.2%
• flow of DC: 200mA ± 1.5%
• Resistance: 2k/20k/200k/2MΩ ± 1.0%
• continue to be checked by buzzer
• diode test
• Display: 14mm x 35mm LCD
• Power source: 12V GP23A X 1
• Size: 70mm x 120mm x 18mm
• Weight (including battery) 110g


----------------------------------------
Analog=

OHM Electric Inc RAR-501

● Capacity Check with a 1.5V battery.
● Compact size, basic-featured.
● measurement performance
1. Direct current voltage (DCV): 0 ~ 500V
2. AC voltage (ACV): 0 ~ 500V
3. Direct current (DCA): 0 ~ 250mA
4. Resistance (OHMS): 0 ~ 500KΩ
5. Battery capacity measurement (BAT): 1.5V
6. Decibels (dB)

Specification
■ DC voltage (DCV): 2.5/10/50/250/500V
■ AC voltage (ACV): 10/50/250/500V
■ DC current (DCA): 0.5/10/250mA
■ resistance (Ω): × 1K, × 10
■ Battery test (BAT.): 1.5V
■ decibels (dB): -20 ~ +56 dB (low-frequency)
■ Accuracy: DCV ... maximum scale value ± 4%
ACV ... maximum scale value ± 4%
DCA ... maximum scale value ± 4%
Ω ... maximum scale number ± 4%
■ Power supply: AA batteries (1.5V) × 1 book
■ Size and weight: 95 × depth 30mm height 62 × width of about 90g
■ Accessories: pin plug test formula bar ... red / black pair
Batteries (AA batteries 1.5V) 1 book (for operation check)
Mini fuse (0.5A/250V) 1 piece (built-in)

-------------------------------------

I think my other meter is definitely screwed up.
Can even use the bias checker (tube base type) to get a reading anymore.

I am using the two one ohm resistor method off pin 1/8.
Same old stuff happening.


I put the 220Ks back in.

Been playing it for 30 minutes with no visible troubles.

[Madison]

Hell, I am right on the money with the 220Ks (and my lovely POS 1M divider meter) me thinks.

[jjasilli]

 

[Custom_Amp_30]

I have a schematic for an Elk Viking 100, I got it from Joe Fire:www.sixbil@sbcglobal.net; He was the only American Engineer at the Elk Plant back in the late sixties. If your having problems, contact him via Email. Can't hurt.