Ampeg bt 15 15c 15d 18c portaflex schematic

Page 1

Transistors by Mmlulaclurer

Nuluher JEDEC HEP NTE GE

0 1, z zmasn 326

0 35 211333911: 199 123AP
0 7 2113115 123A 85 2113415
0 11 2mm 2511 396 12
q g ZN3767 2M and 346
n 117 2113751 m 213 3n:
a 11.1: 21131155 zuauas 130 75

r?" (21
03 3 K zsomo
{Ge V" .L + .1. _|_ o .
3" "Lamas 1I I 1" 787901.41.
' I 300 ' .1. '1' .7. Touncmu
WEE c 11 c 12
220
470 K
r324 39 Each.
22¢ * 1 .47 .4? SPWW
100K 54' A 1K r841 r342 3-4 =-
39 10K 6 10K 10K "2500730 Swab"
11 17 5 ~ - 1
J \r 3' 25 ll 10 K
. «a .. 1w . ..
K . fl 1.2..
l Rs 2.70 .
.9» :5 100 a 1000 3".
100K - " £30 6' 2.5 W 9
=1 15K Q u-I'
22 K $ 33
r812 $44
15 K r .15 470
=' :17 47
.002 .170 12514 1 220 100 . .
Wlth no slqnal present. adlust f 824 So that voltacles measured 3 '3 K
accross r 841. 2. 3. 4 are .06VDC +- .03V(.03 max. .09 min.) D 1-4
These voltages should rise uniformly to approximately .6 VDC 100 PP

with 100 watts outputted into 4 ohms. Adjust r 812 so that
voltages from + of cap 841 is 2 the supply voltage at

c11orc12.

Ampeg
Portaflex

Models
BT45. BT-1SC
BT-lSD. BT-1SC

1- panol

... _§

oloetrlluminugan!