Wattkins.com Universal PCB

Transcription

1 J imple elf plit IN- M R K R 00K X V- 0.0uF V- M- ne tack The simple low loss Tweed ne ontrol is used to provide minimal signal attenuation..00uf 0pF ne M- IN- elf plit PI The simplest PI There isn t one! The power tubes perform the function themselves, albeit at reduced efficiency The tone though is unique... R0 K R 00K X V- 0.0uF V- Near R R 0K n Edcor XPP0-n-K works very well as a high quality budget option in this amp. et the, or ohm version to suit your speaker cab. There is no multi-tap option. Whilst a pair of Vs can easily put out + watts, in a elfplit config they re more like a pair of E Vs & a 0 watt OT is ample R K V V R 00R* 0W rown K R 0 W 0 W T T XPP0--K lack R K.uF T R K uf V V lue K athode Resistor R 00 - V / VT ( watt plate dissipation) 0 - Vintage V / P ( watt plate dissipation) 0V 0V 00V F ntek -T00 00v taps in T config T UF00 R 0R W PT T T R K W R K W PT T T T R 00 UF00 TO LL.V HETER N INITOR LMP R 00 R 0K W uf /0V R' 00K W uf /0V uf /0V uf /0V Universal P imple elf plit P Versions ate uthor V.x /0/0

2 ecret elf plit J HIH J LOW M R K R K F J Preamp Tweak U is used to provide a pentode nd gain stage along with a conventional triode st stage. U() Triode/Pentode I values are now well tested and very usable. R K R K U V-T Edcor XPWR0 T.uF v 0.0uF ne tack The simple low loss Tweed ne ontrol is used to provide minimal signal attenuation. V- M- UF00.00uF 0pF ne M- IN- R0 K elf plit PI The simplest PI There isn t one! The power tubes perform the function themselves, albeit at reduced efficiency The tone though is unique... R 0K U V-P R K IN- R 0R W R' M.0uF 0v V 0V 0V PT T HT 0.0uF Pin T V- R K W Near R R K W R 0K n Edcor XPP0-n-K works very well as a high quality budget option in this amp. et the, or ohm version to suit your speaker cab. There is no multi-tap option. Whilst a pair of Vs can easily put out + watts, in a elfplit config they re more like a pair of E Vs & a 0 watt OT is ample R K R 00R 0W V V V V rown K R 0 W lue K 0 W T T T XPP0--K lack PT T T T R 00 UF00 TO LL.V HETER N INITOR LMP R 00 R 0K W uf /0V R' 00K W uf /0V uf /0V uf /0V Universal P ecret elf plit P Versions ate uthor V.x /0/0

3 ecret elf plit J HIH J LOW M R K R K J Preamp Tweak U is used to provide a pentode nd gain stage along with a conventional triode st stage. U() Triode/Pentode I values are now well tested and very usable. R K R K U V-T.uF v 0.0uF ne tack The simple low loss Tweed ne ontrol is used to provide minimal signal attenuation. V- M-.00uF 0pF ne M- IN- R0 K elf plit PI The simplest PI There isn t one! The power tubes perform the function themselves, albeit at reduced efficiency The tone though is unique... R 0K U V-P R K IN- R' M.0uF 0v HT 0.0uF Pin V- Near R R 0K n Edcor XPP0-n-K works very well as a high quality budget option in this amp. et the, or ohm version to suit your speaker cab. There is no multi-tap option. Whilst a pair of Vs can easily put out + watts, in a elfplit config they re more like a pair of E Vs & a 0 watt OT is ample R K R 00R 0W V V V V rown K R 0 W lue K 0 W T T T XPP0--K lack F lassicne 0-0 0v 0m.v T Y-T R R0 W 0V 0V 0V PT T T R K W R K W T T R 0K W R' 00K W uf /0V uf /0V uf /0V PT T T T ll.v Universal P Tube Rectified ecret P Versions ate uthor V.x /0/0

4 H ecret lues Harp L M ' K J R K U V-T R K.0uF R 0K ain 00K- V- IN- right 0 0pF R K R 0K R K.0uF 0v U V-P R' M HT Pin 0R N R 0K IRF0 or FQNLN0 MOFET R K V- R K 0pF.0uF.0uF 0K-L ass M- Mids K-L 00K- 0.0uF R K L V n Edcor XPP-n-.K works well as a quality budget option in this amp. et the, or ohm version to suit your speaker cab. There is no multi-tap option. For other options, look for an OT handling around an K load. - 0+Watt:- L ( watt plate dissipation). 0 will drive the power tubes conservatively, 00 ggressively. Use parallel 0R 0watt + W combination as follows to get: -.K *athode Resistor R Pin K K K +K K0 R0 K U V- U V- R 0K R 0R* 0W R 0 W 0 W Pin Pin Pin 0 (R0).v LE LTP R M 0 ().v rn LE R Jmp L V.K Pin XPP--.K F XPWR 0v m.v T T T R W R R R0 W R 0K W PT T 0V T R0 00K W uf 0V 0V R K W R K W uf 0V V uf 0V 0V R K W uf 0V Universal P ecret lues Harp PT T P Versions V.x T T ll.v ate uthor /0/0

5 H ecret lues Harp EL M ' K J R K U V-T R K.0uF R 0K ain 00K- V- IN- right 0 0pF R K R 0K R K.0uF 0v IN- U V-P R' M HT Pin 0R N R 0K IRF0 or FQNLN0 MOFET R K V- R K 0pF.0uF.0uF 0K-L ass M- Mids K-L 00K- 0.0uF R K n Edcor XPP0-M-.K works well as the quality option in this amp. For other options, look for an OT handling around a.k load. *athode Resistor R - 0+Watt:- EL ( watt plate dissipation). 0 will drive the power tubes conservatively, 0 ggressively. EL V.K T Use series 0watt + watt wirewound combinations as follows to get: - 00R + R 00R +R 00R + R R0 K U V- 0 (R0).v LE LTP R M U V- 0 ().v rn LE R Jmp R 0K R 0R* W EL V.K R K0 W K0 W T T reen White Edcor XPP0-M-.K F XPW 0v 00m.v v T T T R W R R R0 W R 0K W PT T 0V T R0 00K W uf 0V 0V R K W R K W uf 0V V uf 0V 0V R K W uf 0V Universal P H PT T P Versions V.x T T ll.v ate uthor /0/0

6 H uper ecret lues Harp V R0 M R K PT J F R K R K U V-T.0uF T T T T T T R 0K ain 00K- Transformer & Tube Rectifier Tube rectifiers drop varying amounts of voltage dependant upon model & load. s such use a PT with a 0-0v T secondary and choose the rectifier model to adjust the + as required. Y's drop the most, then Z, V & R's the least. Use whichever suits. If unsure, K in the forums! uitable Transformer models from Hammond, Edcor & lassicne include: - Hammond 0X, 0PZ Edcor XPWR, 0, 0, 0 lassicne 0-0, 0-0 (0v mains) or 0-0 (0v mains) Hammond 0X / v V- IN- R W ll.v right 0 0pF PKR R K R 0K R K ep 0.uF U / R R' M.0uF 0v U V-P NF ne tack K 0' pf R0 Pin HT Pin R 0K Prescence K-L U V-P 0R N K R R0 W R 0K W R 0K J R' M0 dyne IRF0 or FQNLN0 MOFET e 0.0uF.uF 0v PT T 0V T R0 00K W V- MV M- ass M- e.0uf v uf 0V R M R K R M 0V R K W.00uF.0uF R K 0 U V-T R K W uf 0V R 0K R 0K R K K V 0.0uF 0pF R 0K.00uF uf 0V 0V R K W M- R K R 00R* 0W uf 0V R0 Pin R M0 V-T V V-T V Hammond, Heyboer & lassicne watt OTs provide a great vintage tone with, & Ohms taps. n Edcor XPP-x-K provides a good quality cost effective option if using an Edcor power TX (such as the XPWR). rown K athode Resistor R 00 - V / VT ( watt plate dissipation) 0 - Vintage V / P ( watt plate dissipation) P Versions ate uthor R 0 W 0 W lue K T T T Hammond 0P watt-.k reen White Universal P uper ecret lues Harp V.x /0/0 NF PKR

7 Peg R0 M R K PT J F R K R K U V-T.0uF T T T T T T R 0K ain 00K- Transformer & Tube Rectifier Tube rectifiers drop varying amounts of voltage dependant upon model & load. s such use a PT with a 0-0v T secondary and choose the rectifier model to adjust the + as required. Y's drop the most, then Z, V & R's the least. Use whichever suits. If unsure, K in the forums! uitable Transformer models from Hammond, Edcor & lassicne include: - Hammond 0X, 0PZ Edcor XPWR, 0, 0, 0 lassicne 0-0, 0-0 (0v mains) or 0-0 (0v mains) Hammond 0X / v V- IN- R W ll.v right 0 0pF PKR R K R 0K R K ep 0.uF U / R R' M.0uF 0v U V-P NF ne tack K 0' pf R0 Pin HT Pin R 0K Prescence K-L U V-P 0R N K R R0 W R 0K W R 0K J R' M0 dyne IRF0 or FQNLN0 MOFET e 0.0uF.uF 0v PT T 0V T R0 00K W V- MV M- ass M- e.0uf v uf 0V R M R K R M 0V R K W.00uF.0uF R K 0 U V-T R K W uf 0V R 0K R 0K R K 0.0uF K 0.0uF V R 0K 0pF.00uF R 0K uf 0V R K R K 0V R K W M- uf v R 00R* 0W PT Phase Inverter Phase Inverter witch provides choice between a conventional athodyne PI and elf-plit operation. elf-plit operates when the switch grounds the V power tube grid to groundand lifts the cathode bypass cap. uf 0V R0 Pin R M0 V-T V V-T V Hammond, Heyboer & lassicne watt OTs provide a great vintage tone with, & Ohms taps. n Edcor XPP-x-K provides a good quality cost effective option if using an Edcor power TX (such as the XPWR). rown K P Versions ate uthor R 0 W 0 W lue K T T T Hammond 0P watt-.k reen White Universal P Peg V.x /0/0 NF PKR