Four IF and two RF stages.Īccessories: SP-300 Speaker, SPC-10 SSB ConverterĬomments: Ranges. 20 Tubes.Ĭircuit Complement: (2) 6BA6 RF Amp, 6AC7 FFO, 6C4 VFO, (2) 6BE6 Mixer, 6BA6 Gate, 6C4 FFO, (2) 6BA6 IF Amp, 6BA6 Driver, 6BA6 Buffer, 6C4 BFO, 6AL5 Detector/AVC, 6AL5 Lim/Meter, 12AU7 IF Out/AF Amp, 6V6GT Output, 0A2 Regulator, 5R4GY Rectifier and 6AL5 Rectifier Single conv. Model SP-400-SX covers: 1.25-40 MHz $399.Ĭlick here to view sold archive at Universal Radio.Ĭircuit: Dual Conversion Superheterodyne. Variants: Model SPR-400-X is a rack version. For battery operation use: quantity five 45V "B", one "A" and one "C". The power supply is separate and is approximately 13.6x7.62x8.62" 28 Lbs. Supplied with external AC power supply and interconnecting cable. ![]() 18 Tubes.Ĭircuit Complement: 6K7 1st RF Amp, 6K7 2nd RF Amp, 6L7 1st Detector/Mixer, 6J7 HF Osc, 6K7 1st IF Amp, 6SK7 2nd IF Amp, 6SK7 3rd IF Amp, 6H6 2nd Detector, 6N7 NL, 6SJ7 BFO, 6SK7 AVC Amp, 6H6 AVC Rectifier, 6J5 1st AF Amp, 6F6 2nd AF Amp, 6F6 3rd AF Amp, 6F6 3rd AF Amp, 5U4G High Voltage Rectifier and 5Y3GT/G C-Bias Rectifier.Ĭomments. ![]() ![]() ![]() Hammarlund SP-400-X Hammarlund SP-600-X Receiver, Hammarlund sp600Ĭircuit: Single Conversion Superheterodyne.
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