Heathkit IG-4505 - Page 13

Ge QHEATHEKIT®
Page 13
CAUTION: The E, B, and C leads can be in
different positions for different transistor
types. Be sure to look at the illustrations
carefully each time you are given mounting
instructions for transistors.
(>) Locate the following parts:
Two MPSLO1 transistors (#417-811).
Two 2N5771 transistors (#417-292).
In the following steps, install each transistor as
follows:
1. Refer to the illustration below and
identify the E, B, and C leads of the
transistor.
2. Insert the transistor leads into the
corresponding E, B, and C holes in the
circuit board.
3. Position the transistor 1/4°° above the
circuit board.
4. Turn the circuit board over, solder the
leads to the foil, and cut off the excess
lead lengths.
FLAT
£7) it +
14"
FLAT
(~ ) Q2: MPSLO1 transistor (#417-811).
(¥) Q3: MPSLO1 transistor (#417-811).
( } Q4: 2N5771 transistor (#417-292).
( .) Q5: 2N5771 transistor (#417-292}.
PICTORIAL 1-4
Locate a 2N3393 transistor (#417-118).
Q1: Install a 2N3393 _ transistor
(#417-118) as follows:
Refer to the illustrations below and
identify the E, C, and B leads of the
transistor. The transistor supplied with
your kit may not have a skirt as shown.
Insert the transistor leads into the
corresponding E, C, and B holes in the
circuit board,
Position the transistor 1/4” above the
circuit board.
Turn the circuit board over, solder the
leads to the foil, and cut off the excess
lead lengths.
Check each of these transistors to make
sure the flat on the transistor faces the
same direction as the flat shown on the
circuit board.