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No unread posts Attachment(s) Trio VTVM - 115v/400hz supply

bdbell

7

374

Jun Thu 30, 2022 1:15 am

bdbell View the latest post

No unread posts Attachment(s) Hewlett-Packard 150A Oscilloscope

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diskcopy

21

4432

Jun Thu 30, 2022 12:21 am

Notimetolooz View the latest post

No unread posts Attachment(s) RCA Volt Ohmyst 510A Meter dead(diag measurements made)

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JukeBoxDenny

21

614

Jun Wed 29, 2022 11:44 pm

Usually Lurking View the latest post

No unread posts Car Battery Testers

Retired Radio Man

6

343

Jun Wed 29, 2022 11:08 pm

Usually Lurking View the latest post

No unread posts Repair Centers for HP 410B

Wildwing

0

46

Jun Wed 29, 2022 7:35 pm

Wildwing View the latest post

No unread posts Which VTVM would you own if you could?

luckyflyer

16

283

Jun Wed 29, 2022 4:09 pm

Tubologic View the latest post

No unread posts Attachment(s) Grundig RV3 VTVM - switch to 120v (solved)

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bdbell

24

993

Jun Wed 29, 2022 6:23 am

bdbell View the latest post

No unread posts Attachment(s) Eico 615 adapter and 7-pin tube sockets

hondabones

3

151

Jun Wed 29, 2022 3:49 am

Tom Bavis View the latest post

No unread posts Industrial Instruments L-6B Megohmmeter

Tim

2

1237

Jun Wed 29, 2022 2:50 am

Barry H Bennett View the latest post

No unread posts Attachment(s) Dumont 304 Power Supply

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jethro98

31

504

Jun Tue 28, 2022 11:19 pm

jethro98 View the latest post

No unread posts Attachment(s) DDS Sweep Alignment Instrument

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rbwhipple

46

3861

Jun Tue 28, 2022 11:04 pm

HERSHEY View the latest post

No unread posts I'm unsure if a non polar cap can be used

Timmy333

2

76

Jun Tue 28, 2022 6:32 pm

mblack View the latest post

No unread posts Attachment(s) home brew iso trans and variac metering Q

zbiker II

15

521

Jun Tue 28, 2022 3:01 pm

wazz View the latest post

No unread posts Attachment(s) Jung Jin model JMM 2200

cferry1

0

70

Jun Tue 28, 2022 2:49 pm

cferry1 View the latest post

No unread posts Attachment(s) Motorola R2001D service monitor

Tim Tress

6

303

Jun Mon 27, 2022 7:42 pm

Tim Tress View the latest post

No unread posts FOUND Hickok 600A R6 replacement source

ArtFromNY

4

177

Jun Mon 27, 2022 5:25 pm

ArtFromNY View the latest post

No unread posts Attachment(s) Question for HP 6920B Meter Calibrator owners

cwr56

19

1008

Jun Sun 26, 2022 6:07 pm

Philip Colston View the latest post

No unread posts knight 600 tube checker chart

zbiker

6

3321

Jun Sun 26, 2022 4:35 pm

Tom Bavis View the latest post

No unread posts B&K 747 Tube Tester Meter sits at 12 mark When Powered On?

Uptown

4

181

Jun Sun 26, 2022 4:21 pm

Bill Eccher Jr View the latest post

No unread posts Looking for probe info for a Triplett model 801 TVOM

KA2MCE

2

127

Jun Sun 26, 2022 8:32 am

Retired Radio Man View the latest post

No unread posts Attachment(s) Need Correct Charts for EICO 667 and suggested knob replace

orinwalker

6

259

Jun Sat 25, 2022 8:55 pm

orinwalker View the latest post

No unread posts Attachment(s) Shorts test lamp # in Supreme 504-A Tube Tester

ampstamp88

2

133

Jun Sat 25, 2022 7:58 pm

ampstamp88 View the latest post

No unread posts Attachment(s) HYCON 617 Scope & 614 VTVM info's needed.

Tubologic

9

1449

Jun Sat 25, 2022 5:56 pm

bob91343 View the latest post

No unread posts Attachment(s) Simpson 260

AirScooter

3

222

Jun Sat 25, 2022 3:43 pm

jimtech View the latest post

No unread posts Tektronix S 265 probe info

wazz

2

99

Jun Sat 25, 2022 2:10 am

wazz View the latest post

No unread posts stark PS503 power supply

neil brown

1

105

Jun Fri 24, 2022 9:55 pm

bob91343 View the latest post

No unread posts EMC 106, Hickok 225, ECA FMT Schematics

Retired Radio Man

5

1431

Jun Fri 24, 2022 6:54 pm

Twinsig View the latest post

No unread posts Ballantine Laboratories 302B Voltmeter Manual

bdbell

1

109

Jun Fri 24, 2022 6:44 pm

stevebyan View the latest post

No unread posts ANSWERED thank you Hickok 209A DC probe resistor question

ArtFromNY

5

192

Jun Fri 24, 2022 4:02 pm

ArtFromNY View the latest post

No unread posts Attachment(s) Agilent/HP 6281A Variable Regulated DC Power Supply

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billalpert

27

1156

Jun Fri 24, 2022 2:16 pm

HalFoster View the latest post

No unread posts Attachment(s) port a lab 500d question

cdm

6

282

Jun Fri 24, 2022 1:02 am

Tom Bavis View the latest post

No unread posts Attachment(s) Heathkit IM-5238 AC Voltmeter Temp Compensating Resistor

petersor11

18

683

Jun Thu 23, 2022 11:21 pm

petersor11 View the latest post

No unread posts Attachment(s) Triplett vs Simpson vs Eico - If you can only keep one

ericgeiss

18

645

Jun Thu 23, 2022 10:49 pm

Fred Scoles View the latest post

No unread posts Triplett Signal Generator Model 3433

jamr005

7

1000

Jun Thu 23, 2022 7:24 pm

jamr005 View the latest post

No unread posts Attachment(s) first soldering iron

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ttx450cap

38

3894

Jun Thu 23, 2022 6:20 pm

pauls.ironhorse View the latest post

No unread posts Attachment(s) Wave Generator questions

Codepug

10

378

Jun Thu 23, 2022 4:12 pm

stevebyan View the latest post

No unread posts Attachment(s) Philips PM-3200 scope question (trigger issue)

Tube Radio

11

2861

Jun Thu 23, 2022 2:01 pm

Tube Radio View the latest post

No unread posts Attachment(s) Heathkit IT-17

orinwalker

9

508

Jun Thu 23, 2022 12:59 pm

orinwalker View the latest post

No unread posts Another Use For Your Variac

Retired Radio Man

2

267

Jun Thu 23, 2022 3:48 am

COM-NAV-ECM View the latest post

No unread posts EICO 667 tube tester buzzing

RAD400

8

1017

Jun Thu 23, 2022 12:48 am

Mike C. View the latest post

No unread posts Attachment(s) Hickok 123A

Haywardradio

9

574

Jun Wed 22, 2022 3:44 pm

Haywardradio View the latest post

No unread posts in circuit capacitator testors

Dale B

3

291

Jun Wed 22, 2022 1:34 pm

Big Harry View the latest post

No unread posts Attachment(s) Calculate dropper resistors

kevwr

10

502

Jun Wed 22, 2022 1:20 pm

kevwr View the latest post

No unread posts Sprague 36D/36DY large-can, screw terminal capacitors

HalFoster

0

118

Jun Tue 21, 2022 4:51 pm

HalFoster View the latest post

No unread posts Attachment(s) Hickok 605A 7-pin socket replacement

BrianU

7

267

Jun Mon 20, 2022 7:03 pm

Bill Eccher Jr View the latest post

No unread posts Attachment(s) B&K Tube Tester 500, meter is good but won't move

jescher356

3

207

Jun Mon 20, 2022 3:31 pm

jescher356 View the latest post

No unread posts Attachment(s) Precision Model 48 VTVM Calibration

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Robbdoe1

23

547

Jun Mon 20, 2022 11:04 am

Robbdoe1 View the latest post

No unread posts Attachment(s) How do you Decide if it is OK to Part Something Out?

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PhilF

28

1297

Jun Sun 19, 2022 10:25 pm

fifties View the latest post

No unread posts Attachment(s) Capacitor/resistor substitution boxes

j0shua

11

536

Jun Sun 19, 2022 5:58 pm

j0shua View the latest post

No unread posts Attachment(s) Dynascan 177 VTVM rebuild

Guzzifan

9

665

Jun Sun 19, 2022 5:32 am

Guzzifan View the latest post

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