> ard_at_p850ug1.demon.co.uk (Tony Duell) wrote:
>>
>> Incidentally the nominal Vff is given as 6.3V. I wonder how many
>> modern-day engineers would realise the significance.
Well, I'd assumed that f stood for filament.
___
Hey, perhaps Vcc is cathode voltage!
> This is the point that zeners change from avalanche to
> some other kind of break down that I can't remember
> the name of. These made good noise generators.
> Or, could you be talking about filiment voltages?
> Dwight
I was taught, avalanche breakdown above 5V, Zener breakdown (of course) below,
but I'd always assumed that both mechanisms were present around the changeover
point.
Philip.
**********************************************************************
This email and any files transmitted with it are confidential and
intended solely for the use of the individual or entity to whom they
are addressed. If you have received this email in error please notify
the system manager.
This footnote also confirms that this email message has been swept
for the presence of computer viruses.
Power Technology Centre, Ratcliffe-on-Soar,
Nottingham, NG11 0EE, UK
Tel: +44 (0)115 936 2000
http://www.powertech.co.uk
**********************************************************************
Received on Thu Oct 21 1999 - 09:56:41 BST