|
|
|
|
|||||||
| Components and Circuits For discussions about component types, alternatives and availability, circuit configurations and modifications etc. Discussions here should be of a general nature and not about specific sets. |
 |
|
|
Thread Tools |
9th Aug 2019, 2:45 pm
|
#1 |
|
Pentode
Join Date: Jan 2013
Location: Ulverston, Cumbria, UK.
Posts: 115
|
Unknown valves
Hi,
Can anyone help identify what these valves may be. I got them in amongst a box of b4 base triode valves I bid on in a sale. All the markings have worn off. If I can identify them I'd like to use them for something maybe. Thanks, Mike |
|
|
9th Aug 2019, 4:17 pm
|
#2 |
|
Heptode
Join Date: Jan 2008
Location: Birchington Kent, UK.
Posts: 596
|
Re: Unknown valves
Hello Mike
If pins 2 & 7 are missing on the two in the middle, they're probably ARP12 with the metal coating removed. Have a look at the Valve Museum picture: http://www.r-type.org/exhib/aaa0572.htm
__________________
Regards Pete |
|
|
9th Aug 2019, 4:50 pm
|
#3 |
|
Pentode
Join Date: Jan 2013
Location: Ulverston, Cumbria, UK.
Posts: 115
|
Re: Unknown valves
Here's a view of the pins.
Mike |
|
|
|
9th Aug 2019, 6:33 pm
|
#4 |
|
Heptode
Join Date: Mar 2011
Location: Dorset, UK.
Posts: 521
|
Re: Unknown valves
Hi,
Centre spigot size might suggest Mazda octal, and if so with pin 7 missing these could be SP41/61. Height is similar. Large one to the left in the first picture reminds me of Marconi/Osram KTW61 or KTW63 Cheers Rich
__________________
To an optimist a glass is half full; a pessimist half empty; an engineer twice as big as need be! |
|
|
|
9th Aug 2019, 7:37 pm
|
#5 |
|
Pentode
Join Date: Jan 2013
Location: Ulverston, Cumbria, UK.
Posts: 115
|
Re: Unknown valves
Can just make out VR 14....? On one of the smaller ones.
|
|
|
|
9th Aug 2019, 7:43 pm
|
#6 |
|
Dekatron
Join Date: Apr 2011
Location: Cornwall, UK.
Posts: 13,454
|
Re: Unknown valves
Bottom one in Post #1 photo, ARP37 ?
Lawrence. |
|
|
|
9th Aug 2019, 7:57 pm
|
#7 |
|
Pentode
Join Date: Jan 2013
Location: Ulverston, Cumbria, UK.
Posts: 115
|
Re: Unknown valves
This is a picture with a filter applied to it.
|
|
|
|
9th Aug 2019, 8:02 pm
|
#8 | |
|
Dekatron
Join Date: Apr 2011
Location: Cornwall, UK.
Posts: 13,454
|
Re: Unknown valves
Quote:
? Lawrence. |
|
|
|
|
9th Aug 2019, 8:24 pm
|
#9 |
|
Pentode
Join Date: Jan 2013
Location: Ulverston, Cumbria, UK.
Posts: 115
|
Re: Unknown valves
That's what I was just looking at, looks like it most probably is that.
Was thinking this may be the bigger one. |
|
|
|
13th Aug 2019, 6:12 pm
|
#10 |
|
Rest in Peace
Join Date: Mar 2010
Location: Berkshire, UK.
Posts: 72
|
Re: Unknown valves
How about VR116/CV1116/6F32. RAF stores ref 10E/266
Chris |
|
|
