• Country
• United States of America (USA)

• Manufacturer / Brand
• Schulmerich Electronics Inc; Sellersville (PA)

• Year
• 1968 ?

• Category
• Sound/Video Recorder and/or Player

• Radiomuseum.org ID
• 205160

Audio (to hear)

• Number of Tubes
• 5

• Valves / Tubes
• 12AX7 or 7025 12AX7 or 7025 6AQ5 6AQ5 6X4

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Details
• Other Recorder/Player; Loudspeaker + integr.Amplifier

• Power type and voltage
• Alternating Current supply (AC) / 110 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) - elliptical / Ø 3 inch = 7.6 cm

• Power out
• 10 W (unknown quality)

• Material
• Metal case

• from Radiomuseum.org
• Model: Carillon CHU-25 [Chime/amplifier unit only] - Schulmerich Electronics Inc;

• Shape
• Miscellaneous shapes - described under notes.

• Notes
• This unit is the wall-mounted component of a solenoid-strike electronic carillon. The solenoids that strike the steel cylinder tone rods are activated by a 10 or 15 volt voltage (switch selectable for cable length) from the amplifier and have gravity return. The solenoids are activated from an externally-located 25-key keyboard which also has the on/off and volume control functions. The two units connect through a 36-pin Amphenol connector. One picture shows several of the 25 copper-coil/steel-magnet core pickup units, which are wired in a series/parallel arrangement. An integral speaker is augmented with two additional outputs, one for the "tower" amplifier (think church belltower) and another for additional loudspeakers. An interesting data-point about this unit is that the keyboard unit is low-voltage only, so the amplifier power supply input transformer is always "on" to send a 12 volt AC control voltage to the keyboard, while leaving 250 volts on each of the plates of the 6X4 rectifier without filament voltage until activation. Additionally, volume control is accomplished by reducing the DC cathode voltage on one of the 12AX7s, keeping the long control wiring out of the sound signal path.

• Author
• Model page created by Hank Kaczmarski. See "Data change" for further contributors.

• Other Models

• Here you find 8 models, 8 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Schulmerich Electronics Inc; Sellersville (PA)