100 dollar tube tester by VHT

[Gregadd]

my browser sent this to me. I have not tried it. I am thinking about it. May buy it for a review.https://www.stewmac.com/luthier-tools-and-supplies/tools-by-job/tools-for-electronics/vht-tube-tester--amp-bias-meter/?

 

[Lowrider75]

View attachment 99468 my browser sent this to me. I have not tried it. I am thinking about it. May buy it for a review.https://www.stewmac.com/luthier-tools-and-supplies/tools-by-job/tools-for-electronics/vht-tube-tester--amp-bias-meter/?

There are other testers like this available. They test tube bias when in circuit. They dont measure Gm or emissions.

 

[Gregadd]

Great can you share some of them with the members? This one has an attractive price and bias.

 

[Lowrider75]

Great can you share some of them with the members? This one has an attractive price and bias.

Are you looking for a bias tester or a tube tester that measures tube parameters and tube strength? I've been looking for a simple tester that isn't 50 years old.

Yours looks really nice.
On Amazon and Ebay, use key words "vacuum tube bias tester."

 

[new2Krell]

A tad late maybe, I use something similar

View attachment 99468 my browser sent this to me. I have not tried it. I am thinking about it. May buy it for a review.https://www.stewmac.com/luthier-tools-and-supplies/tools-by-job/tools-for-electronics/vht-tube-tester--amp-bias-meter/?

A tad late maybe, but I bought something similar a few years ago (not sure if they are still available!). No built in dials, you need to plug into a normal digital volt meter, preferably autoranging. Two toggle switches on the unit, one to select the tube, the second to choose between Ik and Vp (an autoranging voltmeter saves resetting the DVM voltage selector between tests).

 

[christensenleif@msn.com]

I have 1 custom made for my selection of tubes used in system
Becks from Germany

Hoererlebnis No. 46 - RM 1 Tube Tester and Tube Checker

Test Report RM 1, Hoererlebnis No. 46 - Tube Tester RM 1 from Beck Elektroakustik - Helmut Beck is back

www.beck-elektroakustik.com

 

[Argonaut]

I have 1 custom made for my selection of tubes used in system
Becks from Germany

Hoererlebnis No. 46 - RM 1 Tube Tester and Tube Checker

Test Report RM 1, Hoererlebnis No. 46 - Tube Tester RM 1 from Beck Elektroakustik - Helmut Beck is back

www.beck-elektroakustik.com

That looks like a rather nicely built tester at a very reasonable price Leif … I wonder if they would consider ( Be Mad Enough) building me a unit to specifically test full parameters for Transmitting valves specifically 813 and 814.

 

[christensenleif@msn.com]

sure he would.......contact Helmut...tell Leif in Norway sent you
mine went up in smoke due to a Takatsuki 300B, and the support to fix it was outstanding, so I did it myself

 

[Lowrider75]

I have 1 custom made for my selection of tubes used in system
Becks from Germany

Hoererlebnis No. 46 - RM 1 Tube Tester and Tube Checker

Test Report RM 1, Hoererlebnis No. 46 - Tube Tester RM 1 from Beck Elektroakustik - Helmut Beck is back

www.beck-elektroakustik.com

Looks very nice. So does the price. I'll need to explore this further.

 

[new2Krell]

I have 1 custom made for my selection of tubes used in system
Becks from Germany

Hoererlebnis No. 46 - RM 1 Tube Tester and Tube Checker

Test Report RM 1, Hoererlebnis No. 46 - Tube Tester RM 1 from Beck Elektroakustik - Helmut Beck is back

www.beck-elektroakustik.com

Looks great! I have always fancied a device to check /match my EL34s. Would this really replace a traditional emission tester / matcher?
I was curious how it worked - found this:

(text in German, lived there for 12 years, not a problem) I think most (non German speaking) will get the gist of it.
For the record, I have a little "Tube Imp" for matching my ECC82's and 83's.

 

[alevaudio]

I have 1 custom made for my selection of tubes used in system
Becks from Germany

Hoererlebnis No. 46 - RM 1 Tube Tester and Tube Checker

Test Report RM 1, Hoererlebnis No. 46 - Tube Tester RM 1 from Beck Elektroakustik - Helmut Beck is back

www.beck-elektroakustik.com

Found interesting DIY here: https://valveheaven.com/wp-content/uploads/2015/03/An-inexpensive-easy-to-build-diy-valve-tester.pdf
I just built this project with some modifications for under $100USD. It does not look aesthetically pleasing but it is budget friendly and works great.