ELECTRONIC CIRCUIT

5 DOT LED LINEAR LEVEL METER DRIVER circuit using KA2284
5 DOT LED LINEAR LEVEL METER DRIVER circuit using KA2284
The KA2284 are a monolithic integrated circuit disigned for 5-dot LED level meter drives with a built-in rectifying a amplifier, it is suitable for AC/DC level meters such as VU meters or signal meters.
FEATURES
High gain rectifying amplifier [...]

Audio Amplifier circuit using 2N3055 MJ2955
Audio Amplifier circuit using 2N3055 MJ2955, A564, D438, C1162
R1 ………… 100K
26 ………… 30K
27 ………… 560
4 …………. 10K
5 …………. 1K
8 …………. 2K4
9 …………. 4K7
10 11 12 …… 100
13 14 ……… 300
15 16 ……… 0.5 5v
C1 ………… 100n
2 …………. 47uF
3 …………. 100pF
D1234 ……… IN414
Q124 ………. A564
5 …………. D438
6 …………. C1162
7 …………. MJ2955
8 [...]