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Electronics
Vacuum Tubes 2xEL34(alt6CA7types)
3x12AX7(alt7025A)
DCpoweredfilamentsupplyonpreamptubes
Bias Supply Autobalancing
Power Output 50WattsRMS
Speaker YCV50:12inchCelestion®speaker
Channels onelead&onecleanchannel
Input Impedance 1Megohm
Tone Controls Separatetonecontrolsonbothchannels
(Treble,Bass,&Middle)
MasterVolumeandReverbonMasterSection
Reverb Accutronics®long-reverbwithdual-springs
Power Supply Fullyregulated
Connectors
Input Jack 1/4inchphonejack
Send Jack Balanced1/4inchTRS
(Tip-positive/Ring-negative/Sleeve-ground)
Return Jack Unbalanced1/4inchphonejack,10kohms
Speaker Jacks Two1/4inchphonejacks
Footswitch Jack 1/4inchTRS,acceptsastandard,
latchingdual-footswitch&connectingcable
Cabinet
Cabinet Construction allplywood
Covering Leatherette
Grille Perforated18-gaugepaintedsteel
withclothcovering
Dimensions (WxHxD) 23.0inchx18.5inchx9.0inch
58.4x46.9x22.8cm
Weight 45lbs(20.4kg)
Power Requirements
120V 60Hz1.0A
230V 50Hz0,5A
Warranty Two-year, unlimited (even if you break it!)
transferable warranty*
(valid in USA and Canada only)
Footswitch Included Twobutton(ChannelSelect/Boost)
withseparateLEDindicators
Specifications
External Speaker Jack/s
Theseunder-the-chassismounted1/4inchjacksallowconvenientconnectionofan
8-ohmexternalspeakercabinet.Ifyoudisconnecttheinternal12inchCelestion®
speaker,youcanconnectuptotwo8-ohmexternalcabinets.
Replacement Tube Selection & Bias
TheYCV50BcomesequippedwithEL34outputtubes.Replacementscanbeanybrand
ofEL34or6CA7andwerecommendthatthebiasvoltagebemeasuredandpossibly
adjusted(seebelow).Swappingin6L6/5881outputtubesrequiresachangeinoneofthe
biasresistorstoavoidtubeoverheating.Themodificationshouldbeperformedbyaqualified
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.