[Boatanchors] NEED TUBE INFO

[Brian Goldsmith]

-----Original Message-----
From: David Hollander 


Brian - once again, the 280 rectifier is a 2.5 volt filament tube. It is 
the2.5 volt version of the 80 rectifier. The National 5887 doghouse supply
uses one to power the FB-7 receiver 2.5 volt tube version. The National 5880
doghouse which is for the 2.5 volt version of the SW-3 also has a 280 in the
power supply. The doghouse supplies for the early national receivers using 6
volt tubes uses an 80 rectifier. 


***** The following people from the Tube Collectors Association do not agree
with you and present some data sheets to back them up.I agree with you about
the 280A.

>>1) Re: 280 Rectifier
    Posted by: "Donald Daykin" daykin at ameritech.net drdaykin
    Date: Fri Jul 20, 2007 6:54 am ((PDT))

Believe me, the 280 has a 5-volt filament. Since they need separate
windings, it makes no difference what the voltage is for the other tubes.

Donald

>>2) 2c. Re: 280 Rectifier
    Posted by: "Roger P. Walker" rp.walker at btconnect.com rp.walker
    Date: Fri Jul 20, 2007 7:23 am ((PDT))

The 280A is a MV rectifier with a heater of 2.5V 3A but 280 seems to be 5V


>>3) From: tubecollectorsassociation at yahoogroups.com
[mailto:tubecollectorsassociation at yahoogroups.com] On Behalf Of Donald
Daykin
Sent: 20 July 2007 14:54
To: tubecollectorsassociation at yahoogroups.com
Subject: Re: [TCA] 280 Rectifier

Believe me, the 280 has a 5-volt filament. Since they need separate
windings, it makes no difference what the voltage is for the other tubes.

>>4) 2d. Re: 280 Rectifier
    Posted by: "Tony" tonydaggs at comcast.net bone433
    Date: Fri Jul 20, 2007 5:36 pm ((PDT))


http://www.nj7p.org/Tube4.php?tube=280

Tony



Brian Goldsmith.