| BOGEN CHB-10 Tube Amp |
| BOGEN CHB10 All Tube Amp |
| Bogen Challenger 35 All Tube Amp |
| BOGEN TUBE STEREO RECEIVER TUNING EYE AUDIO AMPLIFIER |
| BOGEN 7027A TUBE |
| BOGEN CHALLENGER MX-6 FOUR CHANNEL PREAMP TUBE 12AX7 |
| Vintage Bogen DB-130 Mono Integrated Tube Amplifier |
| Bogen Challenger CHB10A Tube Amplifier-VERY NICE |
| Vintage Bogen AP30 Tube Integrated Amp. |
| BOGEN Model J30 30-watt 6L6 tube amplifier Guitar/Harp |
| VINTAGE DAVID BOGEN DB20 DF TUBE AMPLIFER 6L6G TUBE |
| Bogen Challenger Tube Amp CHB 50 |
| Bogen Challenger CHA 33 Tube Amplifier Amp |
| Bogen Challenger Harmonica tube amplifier |
| '61 Bogen MO 100 Series 1-12 100 watt tube amp WORKS! |
| Vintage Bogen MX60A Tube Amp Amplifier PA System 60Watt |
| Bogen Model SRB-20 HIFI Stereo Tube Amplifier |
| Vintage Bogen DB10-1 Tube Amp |
| Bogen Tube Amplifier MX60A |
| Bogen 7247 12DW7 Tube by Mullard Blackburn |
| BOGEN R660 AM/FM Tube Tuner R-660 SUPER! |
| BOGEN RACK MOUNT AM/FM MODEL TP100 TUBE TUNER |
| Vintage Bogen CHB50 Tube Guitar Amplifier Modified |