[ARC5] Tube Equivalents VT-52 VT-62

[Dennis DuVall]

OK, just checked 3 VT-52s on a military TV-2 set up for a type 45 except running the filaments at 7 volts.  All checked out as “OK” according to the roll chart.
Haven’t actually operated these tubes in an application but would say using the type 45 settings except for the filament voltage an acceptable place to start.

Two of tubes tested (a WE and a Philco) had tall glass envelopes and larger plate and filament structures than a 45.  The third ( a Tungsol) was shorter, about the size of a “normal” 45 and I couldn’t 
get a good look at at it’s internal configuration.

Dennis D.  W7QHO
Glendale, CA

*************
> On Dec 2, 2015, at 10:06 PM, Ian Wilson <ianmwilson73 at gmail.com> wrote:
> 
> Interesting. The entry in NJ7P has the current correct but the voltage
> wrong.
> 
> 73, ian K3IMW
> 
> 
> On Wed, Dec 2, 2015 at 7:43 PM, Kenneth G. Gordon <kgordon2006 at frontier.com>
> wrote:
> 
>> On 2 Dec 2015 at 22:31, WA5CAB--- via ARC5 wrote:
>> 
>>> VT-52  =  45 Special
>>> VT-62  =  801
>>> VT-62A  =  801A
>>> 
>>> Note that I got started trying to figure out what the filament voltage
>> on a 45
>>> Special was and suddenly realized I was due at a meeting near downtown.
>> The 45
>>> is 2.5 volts.  My dim recollection is that the 45 Special is different
>> but I
>>> couldn't swear to it.
>> 
>> 7.0 V.
>> 
>> Ken W7ekb
>> ______________________________________________________________
>> ARC5 mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/arc5
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:ARC5 at mailman.qth.net
>> 
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> 
> ______________________________________________________________
> ARC5 mailing list
> Home: http://mailman.qth.net/mailman/listinfo/arc5
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:ARC5 at mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html