Install these mylar film capacitors:
6-1. Capacitor
&ȝ)
(marked 222).
6-2. Capacitor
&DOVRȝ)
6-3. Capacitor
&ȝ)PDUNHG
Install these ceramic disc capacitors:
6-4. Capacitor
C94, 20 pF.
6-5. Capacitor
C95, 20 pF.
6-6. Capacitor
C70, 47 pF.
6-7 Capacitor
C73, 47 pF.
6-8. Capacitor
C71, 180 pF
(marked 181).
6-9. Capacitor
C72, also 180 pF.
6-10. Capacitor
C69,
ȝ)
(marked 104).
6-11. Install resistor
R72 220 ohms
(red-red-brown).
6-12. Carefully identify PIN diode D13, type BA479G (clear
glass body, red cathode band, middle green band) and install
with correct cathode polarity.
6-13. Install diode D14, also type BA479G per 6-12.
Install the following molded inductors:
6-14.
/ȝ+
(orange-white-silver-gold).
6-15.
/DOVRȝ+
6-16.
/ȝ+
(green-blue-silver-gold)
6-17
/ȝ+
(blue-gray-gold-gold).
6-18.
/ȝ+
(brown-black-brown-gold).
6-19. After carefully double-checking the parts just installed
for correct values, install a shield enclosure, soldering all four
mounting tabs. It is not necessary to bend these tabs before
soldering. No top cover is used on this shield or on the 1st
Mixer section to be built next.
REMINDER: Handle the board carefully to prevent damage to the
mounting lugs of the Volume and Clarifier controls.
1254 - Assembly - 59
Содержание SSB-CW-AM
Страница 25: ...1254 Assembly 4...
Страница 34: ...Phase 2 0 Assembly begins on page 14 1254 Assembly 13 This space is for your notes...
Страница 35: ...1254 Assembly 14 Phase 2 0 Schematic Diagram Details...
Страница 46: ...This space is for your notes Phase 3 0 Assembly begins on page 26 1254 Assembly 25...
Страница 47: ...1254 Assembly 26 Phase 3 0 Schematic Details...
Страница 57: ...1254 Assembly 36 Phase 4 0 Schematic Details...
Страница 68: ...1254 Assembly 47 This space is for your notes...
Страница 69: ...Phase 5 0 Schematic Details 1254 Assembly 48...
Страница 77: ...Phase 6 0 Schematic Details 1254 Assembly 56...
Страница 93: ...1254 Assembly 72 This space is for your notes...
Страница 101: ...Figure 3R Model 1254 Block Diagram 1254 Reference 8...