Q410, AN-214, which utilizes OTL (Output Transformer Less) circuit delivering 3 watts to the speaker.
The 13.5 volts are used for audio amplifier stage. The DC voltage in both AC or DC operation is supplied to the voltage regulator Q111 , 2SD313, to obtain an extremely stable 10 volt DC supply which is used by the various circuits. The 10 volt DC is further regulated by zener diode D413, BZ-091, at 9 volts, and then supplied to the oscillators and harmonic generator circuits. When the AC supply fails, the DC voltage may be automatically supplied to the circuit through the diode D410, VO6B, which prevents the rectified DC voltage from flowing into the battery. |
|
FREQUENCY f |
1ST OSC fo1 |
1ST
IF (fo1-fi1) fi1 |
REF FREQ (1MHz x n) fh |
2ND
OSC (fo1-fh) fo2 |
2ND
IF (fi1-fo2) fi2 |
3RD OSC fo2 |
3RD
IF (fo3-fi2) fi3 |
500kHz | 55.5MHz | 55.0MHz | 3MHz | 52.2MHz | 2,500kHz | 2,995kHz | 455kHz |
1,500 | 56.5 | 55.0 | 4 | " | 2,500 | 2,995 | " |
2,500 | 57.5 | 55.0 | 5 | " | 2,500 | 2,995 | " |
3,500 | 58.5 | 55.0 | 6 | " | 2,500 | 2,995 | " |
4,500 | 59.5 | 55.0 | 7 | " | 2,500 | 2,995 | " |
5,500 | 60.5 | 55.0 | 8 | " | 2,500 | 2,995 | " |
6,500 | 61.5 | 55.0 | 9 | " | 2,500 | 2,995 | " |
7,500 | 62.5 | 55.0 | 10 | " | 2,500 | 2,995 | " |
8,500 | 63.5 | 55.0 | 11 | " | 2,500 | 2,995 | " |
9,500 | 64.5 | 55.0 | 12 | " | 2,500 | 3,455 | " |
10,000 | 65.5 | 55.5 | 13 | " | 3,000 | 3,455 | " |
11,000 | 66.5 | 55.5 | 14 | " | 3,000 | 3,455 | " |
12,000 | 67.5 | 55.5 | 15 | " | 3,000 | 3,455 | " |
13,000 | 68.5 | 55.5 | 16 | " | 3,000 | 3,455 | " |
14,000 | 69.5 | 55.5 | 17 | " | 3,000 | 3,455 | " |
15,000 | 70.5 | 55.5 | 18 | " | 3,000 | 3,455 | " |
16,000 | 71.5 | 55.5 | 19 | " | 3,000 | 3,455 | " |
17,000 | 72.5 | 55.5 | 20 | " | 3,000 | 3,455 | " |
18,000 | 73.5 | 55.5 | 21 | " | 3,000 | 3,455 | " |
19,000 | 74.5 | 55.5 | 22 | " | 3,000 | 3,455 | " |
20,000 | 75.5 | 55.5 | 23 | " | 3,000 | 3,455 | " |
21,100 | 76.5 | 55.4 | 24 | " | 2,900 | 3,355 | " |
22,200 | 77.5 | 55.3 | 25 | " | 2,800 | 3,255 | " |
23,300 | 78.5 | 55.2 | 26 | " | 2,700 | 3,155 | " |
24,400 | 79.5 | 55.1 | 27 | " | 2,600 | 3,055 | " |
25,500 | 80.5 | 55.0 | 28 | " | 2,500 | 2,955 | " |
26,600 | 81.5 | 54.9 | 29 | " | 2,400 | 2,855 | " |
27,700 | 82.5 | 54.8 | 30 | " | 2,300 | 2,755 | " |
28,800 | 83.5 | 54.7 | 31 | " | 2,200 | 2,655 | " |
29,900 | 84.5 | 54.6 | 32 | " | 2,100 | 2,555 | " |
Return to FRG-7 Index | Updated 21 June, 2001 | Maintained by Kent Walker |