External Speaker Jack/s
20
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 YCV50B comes equipped with EL34 output tubes. Replacements can be any brand
of EL34 or 6CA7 and we recommend that the bias voltage be measured and possibly
adjusted (see below). Swapping in 6L6/5881 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 YCV50B has test points and a bias adjustment pot. If you have installed new EL34/6CA7s
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 EL34 (alt 6CA7 types)
Bias Supply Autobalancing
Power Output 50 Watts RMS
Input Impedance 1 Meg ohm
Tone Controls Separate tone controls on both channels
Power Supply Fully regulated
Input Jack 1/4 inch phone jack
Send Jack Balanced 1/4 inch TRS
Return Jack Unbalanced 1/4 inch phone jack, 10kohms
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
Speaker YCV50: 12 inch Celestion® speaker
Channels one lead & one clean channel
(Treble, Bass, & Middle)
Master Volume and Reverb on Master Section
Reverb Accutronics® long-reverb with dual-springs
Connectors
(Tip-positive / Ring-negative / Sleeve-ground)
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!
)