Custom Hw Hand-Wired Grand Amplifier Tweedle Dee Combo Dumble 5e3 Mods Tone

• Customization: Available
• Material: Metal
• Type: Guitar Amplifier Head
• Model NO.: TD-H
• Color: Tweed, Black, etc
• Certificates: CE, RoHS
• Construction: Hand Wired with Top Quality Components
• Design: All Vacuum Tube Design
• Input Jack: Single 1/4” Input Jack
• Channels: 2 Channels, Normal and Bright, Switchable. Each Ha
• Master Volume: Yes
• Control: Single Tone Control
• Preamp Tubes: 2*12ax7’s
• Power AMP Tubes: 2*6V6’s
• Rectifier: 5y3
• Transport Package: Strong Carton Box Package
• Specification: 525*24*24(cm)
• Trademark: Grand, OEM
• Origin: China
• HS Code: 8543709990
• Production Capacity: 10000PCS/Month

Product Description

Feature:
Tweedle Dee 5E3 Combo Dumble Style:

Power: 16 Watts, impedance 8 ohms
Tubes: 6V6GT*2,12AX7*2 ,5Y3GT*1
Speaker: Jensen JCH12-70
Sprague orange caps, Nichicon caps
AB resistor, belden wirea
Vintage class A circuit 
Alpha pots 
Taiwan switch

Different with 5E3 20W is below:
V1 12AX7 instead of 5E3's 12AY7 for more preamp gain
V1 cathodes separated to reduce channel interaction
V1 cathode resistors 1k compared to 5E3 equivalent 1640 ohm for a slightly warm 12AX7 bias
V1 coupling caps reduced from .1uF to .022uF to trim excessive bass frequencies
Local negative feedback from phase inverter plate to grid

Helps the phase inverter deal with the added gain from the 12AX7 V1 by reducing nasty cathodyne phase inverter distortion, tightening the transition from clean to distortion and slightly reducing gain.

Phase Inverter plate load and tail load resistance is increased from 56k to 110k to add headroom

Phase Inverter cathode resistor is increased from 1.5k to 4.7k to cool the bias and make sweet sounding asymmetrical cutoff clipping more likely

Phase Inverter Balance Control

The circuit allows control of even order harmonic distortion generated by phase inverter imbalance. Add imbalance to fatten the clean tone or balance the phase inverter to smooth out the overdrive tone.

The Tweedle Dee Combo is a sweet little devil of an amp. It harks back to the vintage circuit designs of the 50's with their warm clean tones, smooth transition to early breakup and creamy overdrive tones. Its the perfect choice for either club gigs or home studio. Based on the Dumble modded 5E3 circuit of the Tweed Deluxe, we have added our own variations. There are still 2 channels, normal and bright, but you can cascade the output from Channel 1 into Channel 2 for increased range and depth to the amp's overdrive. We've added a Master volume control that allows you to push the preamp channels into massive distortion but still keep the volume low. So you can shred the curtains while granny is sleeping in the bedroom next door

Introduction:
Grand Technology Co., Ltd started in Shenzhen is a professional manufacturer in music instruments and accessories. We have developed a variety of products in electronic musical instruments,guitar effect pedal--Professional and Standard Power Supply etc. We welcome to OEM,Small quantities of OEM, custom. "Quality first, customer orientation" is our purpose. 
Our company has 230 workers, include 15 professional engineers. They supervise the whole producing line from choose material till packing. We can strictly arrange the products as your requests. 
Grand Technology is a manufacturer of musical instruments and accessories, which brand is "Grand".
Grand will be committed to provide the best service to you!
At present, we establish technology, purchasing, and sales groups to serve our customers. We are thinking in your way, doing as your requests and eager to be your reliable supplier. 
Any inquiry will be welcome and highly appreciated.

Choose Pedal, Choose Grand!