The Harptone 18112 and WS30212 Built for Watermelon Slim
* Sound samples to be posted soon *
Available in 6, 18, 25, 30 and 40 watts and not to be confused with generic tweed circuitry, the Harptone Series incorporates features that virtually eliminate feedback and allows the amp to start breaking up as soon as the volume knob hits 1. The circuit is a hybrid which runs a unique phase inverter with adjustable feedback control, specific plate voltages, and coupling capacitor values. Add a speaker for early breakup and it's Harp Heaven.
Controls: Volume, Volume, Tone
Power Output: 18, 25, 30 and 40 watts
Output Tubes: 2 or 4 JJ-6V6, or 2 JJ-6L6
Preamp Tubes: 1 - 12AX7, 1 NOS JAN 5751
Rectifier: 5Y3, 5V4, 5R4, or 5U4,
Transformers: Custom crafted in the USA
Bias: Cathod or Fixed/Adjustable with external adjustment and test points
Configurations: Head, 1x10, 1x12, 2x10, 3x10, 2x12, 4x10, 1x15 Combo
Head: 21" W, 10" H, 9" D; Weight: 24 lbs
1-12 combo: 21" W, 21" H, 10" D; Weight 32 lbs.
2-12 combo: 23.5" W, 22.5" H, 10.5" D; Weight 36 lbs.
Speakers: Usually ships with Weber 10/12/15A125-O with "H" dustcap.
Inside the HT-18112
Chassis: Chrome plated and silkscreened CRS
Circuit Board - Handwired G10 epoxy resin board, tinned brass eyelets, mounted on aluminum standoffs.
Wire: 18 & 20ga solid cloth covered vintage style
Capacitors: Sprague atom electrolytics; Sprague 715 OD's and CDE silver Mica coupling and tone caps. Paper and oil vitamin Q throughout optional
Resistors: Carbon Comp, Metal Film and Oxide throughout
Sockets: Ceramic chassis mount
Potentiometers: Alpha high friction
Switches: Carling
Jacks: Switchcraft
Channels: two channels, bright and normal, no switching
Configuration: Any speaker combination is available with any amp(TT-6115 Etc.)
Speakers: Ships with Weber "H" Dustcap 10A100/125, 12A100/125, 15A100/125 Only
Knobs: Chickenhead in White, Cream, Black, Purple, Green, Red, Blue or Yellow
Logo: Brushed gold, silver, black - oval or rectangle - cabinet or grillcloth mounted
Handles: Vintage style Brown or Black leather strap with chrome mounts or modern style with dog bone mounts
Feet: 1" Rubber or rubber/chrome glides
Speaker Wire: Actual Vintage(not vintage style)cloth covered 16Ga or BlueWave Audio oxygen free 16Ga
Negative Feedback Control: On/Off Switch or potentiometer control
Bias Switching: Cathode / Fixed Adjustable bias settings selectable
Cabinet Finish: The following four options are available, for examples of each visit my recent builds page.
The following are examples of popular configurations, if you need a quote on a specific configuration please ask.
Legend:
CB - Cathode Bias, FB - Fixed Adjustable Bias, V - Volume(2 = normal & bright channel), B - Bass, M - Middle, T - Trebel, P - Presence, FB - Feedback Control, + - Full tone stack and Presence control
The same bias/tube compliment, wattage and controls apply to combo prices below. Combo prices are for reference only and are adjusted based on actual speaker selection.