Wow that is perfect. Thank you. I have more than a few of these old
transistors. Got them in a collection of VLF equipment. All gold leads and some
have gold on the bottom of the can.
73's,
Mike
WE0H
----- Original Message -----
From: Johan Bodin
Sent: Monday, February 27, 2006 1:58
AM
Subject: Re: LF: Looking for datasheets
for transistors...
Hi Mike,
the 2N508 seems to be ideally suited for use in
amateur
LF rigs as it said to be specifically designed
for
"entertainment equipment" ;-)
Data from 1975 vintage Motorola
books:
> 2N1309
"PNP germanium general purpose
amplifier."
Case:
TO-5, pinout=?
Maximum
ratings:
PD: 150mW
VCEO: 30V
IC: 300mA
Characteristics:
hFE (IC=10mA): 80
min.
fab ("frequency cutoff"): 12MHz
(fT~9.6MHz)
Cob: 20pF max.
VCEsat (IC=10mA):
200mV max.
> 2N508
"PNP germanium transistor for audio
driver and low
power output service in entertainment
equipment."
Case:
TO-5, base-emitter-collector counting
clockwise from
the "tab" (bottom view). Base connected to
case.
Maximum ratings:
VCB: 18V
VCEO: 18V
VEB: 5V
IC: 500mA
Tj, Tstg: -65..+100C
PD:
225mW
Characteristics:
ICBO (VCB=-16V, IE=0): 16uA
max.
IEBO (VEB=-3V, IC=0): 16uA max.
BVCER
(IC=0.6mA, RBE=5k) 18V min.
hFE (VCE=-1V, IC=20mA):
99..198
VBE (VCE=-1V, IC=20mA): 180..320mV
Cob
(VCB=-5V, IE=1mA, f=1MHz): 35pF max.
fab ("frequency cutoff",
VCB=-5V, IE=1mA): 2.5MHz
73
Johan
SM6LKM
|
|
