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Posted: Sat Nov 03, 2001 2:49 pm
by Jim70563
Hello all,

Just a quick "What is this part" question...

NLD8180A - Says it is a Hybrid Receiver. Cool, WHAT does that mean? What is the bandsplit,etc...

NFD6111A - Two Pole LO SPT. Nice, And this is what??

Thanks for any info..Please, laugh quietly...

Jim

Posted: Sun Nov 04, 2001 12:19 am
by N4UMJ
Hello Jim70563,

And while that someone is at it, tell me what a NFD6132C Hybrid FDS Mid/Hi SPT is ?

FDS = First Detector Stage ?

I am pretty sure the Mid/Hi SPT refers to the split.

It seems that the two pole/five pole refers to the filtering for the Front-end(FE)of the receiver. Some of the VHF units apparently have closer channel spacing than others requiring the tighter five pole front end.

Hybrid usually means a mix of two devices such as tubes and transistors. Maybe this hybrid involves both Metal-Oxide-Semiconductor Field Effect Transistors (MOS-FET's) and Bipolar Junction Transistor (BJT's). Just a guess.

I suspect a Service Manual would explain these acronyms (all these remind me of working on the Boeing aircraft.)

Eddie
N4UMJ