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Re: [Amps] wanted suitable blower for 8877 tube

To: <>
Subject: Re: [Amps] wanted suitable blower for 8877 tube
From: "Peter Voelpel" <>
Date: Sun, 19 Aug 2007 17:41:33 +0200
List-post: <>
The G2E085 is much too small for a 8877 at 1500W dissipation, unless you run
the tube qrp-
The G2E108 is the right size to run it at half the voltage (and much less
then half the noise) at normal qsos and nominal voltage during RTTY contests


-----Original Message-----
From: [] On
Behalf Of David G4FTC
Sent: Sonntag, 19. August 2007 16:52
Subject: Re: [Amps] wanted suitable blower for 8877 tube

>From: "jeremy-ca"
>Looking thru the EBM site I find no listings for the R2E series below 133.
>Are the ones you mentioned discontinued?

I took the data/part numbers for my original postings from a hardcopy of an
old EBM-Ziehl catalogue.

Although they are now EBM-Papst the part numbers I quoted are still valid
according to their UK website.

However comparing both the US and UK websites and it would appear that there
are some differences between the US and UK catalogues.

The US datasheet shows the G
prefix blowers (G2E085 AA01-05) as being 60Hz whereas page 60 of the
relevant UK catalogue section (8Mb)
shows part number G2E085 AA01-01 as being the 50Hz unit and R2E085 AA01-05
as being the 60Hz unit.

Perhaps the G/R prefix in reality doesnt matter and its the 01 or 05
suffix thats the key.


David G4FTC

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