Traynor YCV4050 Manuel D'instructions page 6

External Speaker Jack/s
21
These under-the-chassis mounted 1/4 inch jacks allow convenient connection of an
8-ohm external speaker cabinet. If you disconnect the internal 12 inch Celestion®
speaker, you can connect up to two 8-ohm external cabinets.
Replacement Tube Selection & Bias
The YCV4050 comes equipped with 6L6 output tubes. Replacements can be any brand of
6L6 or 5881 and we recommend that the bias voltage be measured and possibly adjusted
(see below). Swapping in EL34/6CA7 output tubes requires a change in one of the bias
resistors to avoid tube overheating. The modification should be performed by a qualified
technician.
**The YCV4050 has test points and a bias adjustment pot. If you have installed new 6L6/5881s
and wish to check and possibly adjust bias, we recommend adjusting the zero signal bias to +75
mV +/-10mV DC at each of the test points.
Vacuum Tubes 2 x 6L6 (alt 5881)
Power Output 50 Watts RMS
Input Impedance 1 Meg ohm
Tone Controls Separate tone controls on both channels
Power Supply Fully regulated
Speaker Jacks Two 1/4 inch phone jacks
Footswitch Jack 1/4 inch TRS, accepts a standard,
Cabinet Construction all plywood
Dimensions (WxHxD) 23.0 inch x 18.5 inch x 9.0 inch
Footswitch Included Two button (Channel Select / Boost)
S p e c i f i c a t i o n s
Electronics
3 x 12AX7 (alt 7025A)
DC powered filament supply on preamp tubes
Bias Supply Adjustable
Speaker 12 inch Celestion® Creamback
Channels one lead & one clean channel
(Treble, Bass, & Middle)
Master Volume and Reverb on Master Section
Reverb Accutronics® long-reverb with dual-springs
Connectors
Input Jack 1/4 inch phone jack
Send Jack Balanced 1/4 inch TRS
(Tip-positive / Ring-negative / Sleeve-ground)
Return Jack Unbalanced 1/4 inch phone jack, 10kohms
latching dual-footswitch & connecting cable
Cabinet
Covering Leatherette
Grille Perforated 18-gauge painted steel
with cloth covering
58.4 x 46.9 x 22.8 cm
Weight 45 lbs (20.4 kg)
Power Requirements
120V 60Hz 1.0A
230V 50Hz 0,5A
Warranty Two-year, unlimited (
transferable warranty*
(
valid in USA and Canada only
with separate LED indicators
4
)
even if you break it!
)