Can anyone identify these valves?

[Station X]

I have several valves which are devoid of all markings. Can anyone identify them for me please?

Here's the first one.

IDENTIFIED AS A 6P28.

[Station X]

Here's the second.

IDENTIFIED AS AN ATS25.

[G6Tanuki]

Second one looks like an 807 [or similar-though-different-heater-voltage variant] - I'll give you a fiver for it assuming the heater's got continuity!

First one is really rather around-WWII-era TV sweep-tube-ish. EL / PL-thirtysomething??

[HamishBoxer]

I was tempted but no doubt wrong to say 807 on the second.The first look like tv line o/put and sure somewhere I have similar.

[ms660]

First one possibly a 6P28:

http://www.r-type.org/exhib/aat0003.htm

Lawrence.

[ms660]

Second one, 807.

Lawrence.

[Station X]

Originally Posted by ms660

First one possibly a 6P28:

http://www.r-type.org/exhib/aat0003.htm

Lawrence.

Looks a pretty good match, but the pins on mine are in a different position relative to the electrodes, and the lower electrodes, whatever they are, are race track shaped rather than flat plates.

Could be a manufacturing change.

[Station X]

Originally Posted by G6Tanuki

Second one looks like an 807 [or similar-though-different-heater-voltage variant] - I'll give you a fiver for it assuming the heater's got continuity!

Now that you've pointed me in the right direction I reckon it's a VT60A. Thanks.

http://www.r-type.org/exhib/aaa0383.htm

I have a few 807 variants, including the one in the present thread to sell in aid of charity if you're interested. I'll dig them out and test them.

[ms660]

Originally Posted by Station X

Looks a pretty good match, but the pins on mine are in a different position relative to the electrodes, and the lower electrodes, whatever they are, are race track shaped rather than flat plates.

Could be a manufacturing change.

For possible ID only:

http://www.ebay.co.uk/itm/Vintage-6P...p2047675.l2557

Lawrence.

[Bill]

1st one: Cossor 185BT Line output , series heater.
2nd 807, British Made- Cossor/ Ediswan, anode design different to US.also Not a 12v heater 1625type 807,different base(UX7)
Next?

[Station X]

Originally Posted by ms660

For possible ID only:

http://www.ebay.co.uk/itm/Vintage-6P...p2047675.l2557

Lawrence.

I'll go with that Lawrence. Thanks.

[Station X]

Originally Posted by Station X

Now that you've pointed me in the right direction I reckon it's a VT60A. Thanks.

http://www.r-type.org/exhib/aaa0383.htm

I'll try again It's an ATS25, the ceramic base version.

http://www.r-type.org/exhib/abb0006.htm

[Station X]

Originally Posted by Bill

1st one: Cossor 185BT Line output , series heater.
2nd 807, British Made- Cossor/ Ediswan, anode design different to US.also Not a 12v heater 1625type 807,different base(UX7)
Next?

Thanks Bill, but I checked my valves against the pictures, of the types you mention, at the valve museum and neither is a good match.

http://www.r-type.org/exhib/aaa1310.htm

http://www.r-type.org/exhib/aaa0118.htm

As you say the 1625 has 7 pins, but my valve only has 5.

[Station X]

Number 3.

IDENTIFIED AS A PL36.

[Station X]

Number 4.

IDENTIFIED AS AN EF37A.

[Station X]

Number 5.

IDENTIFIED AS A 6J7G.

[turretslug]

Number 3 maybe PL36? Number 5 maybe 6K7G?

[ms660]

Number 3, PL36:

http://www.r-type.org/exhib/aaa0511.htm

Number 5, 6J7G/NR83:

http://www.r-type.org/exhib/aaa0829.htm

Lawrence.

[ms660]

Number 4, there are several types of red coated glass tubular valves, EBC33?

Lawrence.

[ms660]

Originally Posted by ms660

Number 4, there are several types of red coated glass tubular valves, EBC33?

Lawrence.

Ok, another go....ME1400 or possibly EF37A or EF39:

http://www.r-type.org/exhib/aad0185.htm

Lawrence.