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Sigma Trainers and Kits
(More than 7000 Products - Biggest in Training Industries)

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Audio Engineering Lab


1 Radio Trainers

Model and
Specs Pdf

1 Medium Wave AM Radio Trainer with Fault Switches RDM100M
2 2 Band Radio Trainer RDM104
3 3 Band AM Radio Receiver Trainer   RDM100
4 3 Band Digital Radio Trainer RDM100D
5 10 Band Digital Radio Trainer RDM1000
6 IC Based AM Radio Receiver Trainer             RDM101
7 Superhetrodyne AM Radio Trainer RDM100S
8 Superhetrodyne AM Radio Receiver Trainer  - Sensitivity, Selectivity, Fidelity Test RDM100N
9 Noise Figure Measurement of Superhetrodyne Receiver RDM100NG
10 FM Radio Trainer                              RDM103
11 Superhetrodyne FM Radio Trainer RDM103M  
12 Superhetrodyne FM Radio Trainer  - Sensitivity, Selectivity, Fidelity Test RDM103S
13 Stereo FM Radio Trainer RDM200
14 AM/FM Radio Trainer RDM102AMFM
15 3 Band MW/SW/FM Radio Receiver Trainer             RDM102
16 Communication Receiver Trainer                   COMRX100
17 TRF (Tune Radio Frequency) Receiver Trainer TRF100
18 Electronically tuned Receiver Trainer ETRF100
19 Digital Satellite Radio Trainer DSR100
20 Mobile Radio Trainer MBR100
21 Software Defined Radio (SDR) Trainer SDR100
22 Digital Satellite Radio Trainer DSR100N
2 Tape - Stereo Trainers  
23 Tape Recorder Trainer TDM100
24 Two-in-one Trainer                                 RTDM100
25 Stereo Cassette Player Trainer STRDM100
26 Stereo Tape Recorder Trainer TDM100S
27 Stereo Cassette Player Trainer with graphic equalizer STRDM101
28 Car Stereo Player (Auto Reverse) Trainer         STRDM102
29 Car Two-In-One Trainer     STRDM103
30 Fm Stereo Coding-Decoding Trainer STRCOD100
31 Walkman Stereo Player Trainer STRDM104
32 Stereo Music System Trainer  (Five-in-one) STRDM300
33 Hi-Fi Audio Amplifier Trainer HIFIAMP100
3 Audio Players Trainers  
34 Graphic Recorder GRF100
35 Audio CD player Trainer          ACD100
36 Car CD player Trainer          CARCD100
37 Walkman CD Player Trainer WALKCD100
38 Cassette to MP3 Converter Trainer CASMP3100
4 PA Trainers  
39 PA System Trainer                                 PADM100
40 Cordless Mike PA system Trainer PADM101 
5 Intercom Trainers  
41 Intercom Trainer                                   ICOM100
42 FM Intercom Trainer FICOM100
43 FM Wireless Mike Trainer FICOM101
6 Audio Trainers  
44 Microphones Trainer                MC100
45 Loudspeaker Trainer                LS100
46 Microphones and Loudspeaker Trainer                MCLS100
47 Wacky Talky Trainer WAKTAK100
48 Dictaphone Trainer DICTA100
49 Synthesizer Trainer SYNTH100
50 IP Audio Trainer IPAUDIO100
7 Modules  
51 Radio Mixer Section                              AD101
52 BJT Mixer Trainer AD101A
53 Radio IF Amplifier Section                         AD102
54 Effect of -ve Feedback on Mixer & IF section       AD103
55 Frequency Selective Network                        AD104
56 Audio Analyzer                                     AD105
57 Sound Level Indicator                              AD106
58 Automatic Gain Control (A.G.C.)                    AD107
59 Pre-emphasis &. De-emphasis Circuit                                AD108
60 Tone Control (Bass and Treble)                    AD109
61 Cross-over Frequency Network for Loudspeaker       AD110
62 Audio Mixer                                        AD111
63 Graphic Equalizer Trainer AD112
64 FET 4 Input Mixer AD113
65 R.F Amplifier For A.M Receiver AD114


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