More about preamp (137)

1-10-1987 | EE 36 October 1987 LOW-NOISE MICROPHONE PREAMPLIFIER A quality preamplifier that can be configured for low and high impedance, as well as ba...

1-07-1987 | EE JULY/AUGUST 1987 A linear RF amplifier can be made in two ways: (1) with the aid of a linear active element, or (2) with a non-linear ele...

1-07-1987 | 1 R3 This design answers the need for an inexpensive, yet good quality, preamplifier equipped with a tone control section. Fig. 1 shows the...

1-04-1987 | EE 26 April 1987 VALVE PREAMPLIFIER 2 The main task of the boards de- scribed in this final instalment of the article is to enable the pream...

1-03-1987 | 50 VALVE PREAMPLIFIER 1 EE March 1987 Despite their becoming gradu- ally obsolete, valves are still very popular with a good many audio enth...

1-01-1987 | EE 30 January 1987 TOP-OF-THE-RANGE PREAMPLIFIER-3 This concluding part of the article deals with the construction of the preamplifier. Addi...

1-12-1986 | EE 54 December 1986 TOP-OF-THE- RANGE PART 2 PRE- AMPLIFIER This monthS instalment of the article deals with the description of the circuits...

1-11-1986 | TOP-OF-THE- RANGE PRE- AMPLIFIER-Part 1 The accent throughout the design of this preamplifier has been on quality and the avoidance of unnec...

1-07-1983 | with variable gain The design for the circuit here was created when problems arose with the matching of some output stages with a preamp. In...

1-07-1983 | // the ratio of R2 + R3 + P1 to R3 + P1. The input impedance, which, at 1 M, is quite high, is de- fined by R1 as the op-amp has FET inputs....