Vintage Tube Amp

This particular tube tests very strong, although it’s not the most balanced tube. Often square-getter Mullards are associated with mC1 production codes, and the halo-getter tubes with f91 and later codes. Oddly though, this particular tube has an f91 code AND a square-getter. The f91 code on this tube is Extremely faint, and is almost impossible to see with a naked eye even under good light (and even more difficult to photograph, but I think I managed to barely capture it with a back-light enough to sort-of see it’s faint outline). The print on the tube is very fragile and will easily rub off, some has already rubbed off, special care was taken not to rub off any more while testing. The tube’s test results are displayed in the photos (New 12AX7 Spec 100% = 1,600 Gm). See the photos for physical / cosmetic condition. Part of the design is a little springy shock absorber the keeps the tube safely centered in the box and from rattling around. Notes Regarding Tube Tests. All tubes are tested on an Amplitrex AT-1000 tester in the automatic Fixed Bias Mode (for the most conservative results). Test Results are for a general reference only, and are not a guarantee of performance, nor a guarantee of how they will test on your tester. No real world (audio) performance measurements are taken.

Vintage Pilot 654 FM Stereo tube Receiver Amplifier 12AX7 Telefunken 7591 RCA. Tested in Working Condition and Sound Great Both Channels. 12AX7 Tubes Mixed Telefunken, Mullard and Fisher. 7581 Coin Base Tubes. Antenna Plate On the Back Broke. Good Condition As Show.

Recheck 5 years ago. All vintage RCA tubes.

The KNIGHT 12ax7 Stereo Tube Amplifier is a vintage audio piece designed for restoration or as a pre-amp for a Bell amplifier. Made by the brand Knight in the United States, this model is a classic representation of vintage audio equipment. Ideal for those looking to enhance their audio setup with a touch of nostalgia and a high-quality, handcrafted amplifier. Also includes a bell record o fone amp as well. Nice vintage hi fi equipment.

Offered for sale are the 3 tubes as titled and pictured. These particular 3 tubes tests strong and are closely balanced / matched. The tubes’ test results are displayed in the photos (New 5751 Spec 100% = 1,200 Gm). Note: Even though this tube is often considered interchangeable with the 12AX7, the 5751 does have a bit less gain than a 12AX7, so the test results displayed are the actual Amplitrex specs for the 5751. Also, these tubes are labeled Westinghouse and there are no other EIA codes or numbers on them. So far, these boxes are still just a concept and in the prototype stage (3D Printed). Any and constructive feedback on the idea is welcomed and appreciated. Eventually I plan to offer these boxes for sale by. Themselves, but not quite yet. See the photos for physical / cosmetic condition. Notes Regarding Tube Tests. All tubes are tested on an Amplitrex AT-1000 tester in the automatic Fixed Bias Mode (for the most conservative results). Test Results are for a general reference only, and are not a guarantee of performance, nor a guarantee of how they will test on your tester. No real world (audio) performance measurements are taken.

Offered for sale are the 3 tubes as titled and pictured. These particular 3 tubes tests strong and are closely balanced / matched. The tubes’ test results are displayed in the photos (New 5751 Spec 100% = 1,200 Gm). Note: Even though this tube is often considered interchangeable with the 12AX7, the 5751 does have a bit less gain than a 12AX7, so the test results displayed are the actual Amplitrex specs for the 5751. Also, these tubes are labeled Westinghouse, and there are no other EIA codes or numbers on them, but based on their construction style. And by comparison of hundreds (if not thousands) of other tubes over the years, they appear to be of Raytheon make / origin. So far, these boxes are still just a concept and in the prototype stage (3D Printed). Any and constructive feedback on the idea is welcomed and appreciated. Eventually I plan to offer these boxes for sale by. Themselves, but not quite yet. See the photos for physical / cosmetic condition. Notes Regarding Tube Tests. All tubes are tested on an Amplitrex AT-1000 tester in the automatic Fixed Bias Mode (for the most conservative results). Test Results are for a general reference only, and are not a guarantee of performance, nor a guarantee of how they will test on your tester. No real world (audio) performance measurements are taken.

1950′s Vintage Eastman Kodak Co. Tube Type 12AX7 35L6 Pre-Amp Amplifier. Uses 2 12AX7 ECC83, 2 35L6 tubes. 1920, 20s, 1930, 30s, 1940, 40s, 1950, 50s, 1960, 60s, 1970, 70s. Part(s) shown in pictures will be the exact part(s) you will receive.

This is new, never used open box working little valve amp. The Bugera BC15 is a 15 Watt RMS vintage guitar amp with a 12AX7 valve. It is a combo amplifier with 2 channels and a single speaker. The unit is suitable for various types of guitars, including acoustic, electric, and classical. It features hybrid amplifier technology and has an impedance of 4 Ohms. The Bugera BC15 is part of the Combo product line and is designed for practice sessions. The BUGERA BC15 delivers real tube tone in a compact, 12-pound (5.6 kg) combo. This dual-channel 15-Watt guitar amp features a 12AX7 tube in its preamp stage, a Master volume and 2-band EQ, giving it a wide range of tonal options. The Gain button is provided to activate the Lead/Distortion channel. Ideal for use in rehearsals or gigs, the BC15 sports a custom-designed 8 BUGERA speaker. Ideal for use in rehearsals, recording or small gigs, the BC15 sports a custom-designed 8 BUGERA speaker. A ¼ TRS jack is provided for connecting an external playback device such as a CD player, tape deck or MP3 player, allowing the user to play along with pre-recorded songs. The BC15 also features a headphone jack for private practice sessions.

The empty octal socket on the chassis is likely for a plug-in type transformer. Further research and reverse engineering of the wiring may help yield a better idea of what this unit was used for. There is wear from use/storage like scratches, scuffs and dust. Comes with one Jones plug and tubes. 2 x General Electric 12AX7. 1 x RCA 6AQ5. 1 x General Electric 6X4. Please contact me if you have any questions.