6907 versus 5894

[Brian Carling]

Interestingly the 6907 is in the exact same size package as the 5894 and has the
same gold pins.

The envelope inside looks the same.

I am certain it will do FAR more than 8 watts or even 18 watts!

They must have made and used a lot more 5894s I think.

Looks like both are capable of running 80 watts to me.

On 25 Feb 2004 at 11:01, Neil McKie wrote:

>   I like it when someone out there gets into the act
>  like this.
>
> Ray Colbert wrote:
> >
> > Boy, I don't know where they got those specs for
> > the 6907 tube but nowhere near 80 watts.  8 watts
> > if one is using in link situations for long term
> > reliability.  When I used to work for the FBI and
> > serviced the old GE Progline 400 Mhz uhf units,
> > the max we would run was about 10 watts, even
> > tho the 6907 was rated some higher - 15-20 watts.
>
>   Motorola spec'd the transmitters that used the 6907
>  at 18 watts - what we saw in the field was usually
>  closer to 12 watts.  I think the GE Progress Line
>  was spec'd at 15 watts.  My manual collection will
>  tell me more if I go digging.
>
>
> > 80 watts for the 5894 is a reasonable power at vhf.
>
>   The GE Mastr-Pro had one doing 90 watts I think?
>
>
> > Ran the 5894 at the 100 watt level in the Eldico 100mil
> > transmitter.  The GE (and others) MASTr vhf Prog lines
> > were only rated at 80-90 watts.  70-80 watts for reliability.
>
>   Yup !!!
>
> >
> > 73
> > Ray
>
>   73,
>
>   Neil - WA6KLA
>
>
> > "Politicians are like nappies.  Both should be
> > changed regularly -- and for the same reason"
> > "Scotsman - Scotsman's Diary 12/97"
> > Ray Colbert, W5XE, OOTC#3618, SOWP#1064M SOC#78
> > fp #111 ARCI-5784 NCT2R El Paso,(FAR WEST) TEXAS
>
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