Zetagi B2002 transistors - Motorola ???

Animal · Post by **Animal** » Thursday 16th Aug 2007, 22:09

Hi All,

Anyone know what PA transistors are used in the Zetagi B2002???

There's a Motorola ref (SRFE1164) but I think it's specific to Zetagi & I can't cross-reference them to an alternative???

Also, if I do find a equivalent, will I need them to be matched in pairs (there's four inside)

This amp is supposed to do 600W am/fm but I think that's a bit optomistic

Any assistance greatly appreciated.

Many thanks,

Steve

Animal · Post by **Animal** » Saturday 18th Aug 2007, 23:37

Looks like they (Zetagi) bolted a B750 inside a steel cabinet with a transformer & a fan!!!

hmmmmmmmmm????:idea:

zodiac · Post by **zodiac** » Saturday 15th Sep 2007, 3:38

Animal,
The SRFE1164 can be replaced with MRF422 or SD1407.
Hope this isn't too late.
Dave.

wincker · Post by **wincker** » Tuesday 2nd Oct 2007, 3:10

HI THERE
I HAVE FOUR SUCH TRANSISTORS IN A BOX IF YOU ARE INTERESTED THEY ARE USED ON THE ZETAGI B750 AMPLI B2002 GOOD FOR 600WATTS AM 1200WATTS SSB

U CAN CALL ME ON 0033240498204 COLIN
I HAVE NO DETAILS OF EQUIV TRANSISORS AS THESE ARE NOT LISTED ANYWHERE ELSE.
HOPE I CAN BE OF SERVICE AND HELP YOU OUT.

COLIN

F5VHZ

Animal · Post by **Animal** » Monday 8th Oct 2007, 5:15

Thanks for replies guys - I already ordered & fitted a matched quad - MaCom MRF422 from RF parts, about ?90 inclusive of shipping from the States.

With 15w FM in I get 550+ out, so I'm cooking on gas!!!