Razvan S.

Hello, I never had a schematic, and didn't look into it that much , as I only had the interest in repairing the faults at the time. I assume that the big xformer is indeed a choke (perhaps they used a choke to regulate the output voltage stability better, as an input choke power supply/or a resonant choke power supply of sorts, although I'm not sure), but the little red one I think is a xformer driving the reverb (this model, in some variants, had a reverb tank attached to it below). Sorry I can't help more. I really liked this amp....put a DOD250 grey clone in front of it and it screams Best of luck

* Epiphone Sheraton II, Korea 1992 * Takamine G220 general setup and adjustments

* Randall RG1503 Combo repair

Asta e way more pro fata de aialalta! Good job, really like a lot of details on this one

* Empress Effects Multidrive (cleanup) * ESI Monitor repair * Marshall JVM410H (follow up) -> now repaired * Regal Classic classical guitar repair (old Harmony rebranded model sold by Fender back in the 60s)

Cum a zis si un coleg mai sus, pare OLP (Musicman like), si multe modificari. Tremu e o copie ce se afla demult prin anii 80 pe chitare numeroase, si seamana cu un Kahler(nu mai stiu modelu, si vad ca are montat si un fel de D-tuna pt drop tuning) Nu prea vad cu ce te ajuta ce foloseste...nu are relevanta cu nimic. Daca vrei sa scoti soundu ala de live, mai degraba orienteaza-te spre amp, care este un Laney Ironheart cred, varianta head.

* Swapped the switch in an LP * An ENGL Screamer 50 came in for some work * Gretsch Electromatic tinkering * Peavey Classic 30 work * Started diagnostics on a Marshall JVM410H Head

* Reghin 1981 4/4 Violin * Fender MIM Jazzmaster tinkering * Electroacoustic preamp repair

Texal Special, 57/62, Fat 50s, CS54 daca vrei mai vintage. (specialurile si 57/62 sunt most common sa ai iar that original tone sa zicem) In loc de humbuckeru de bridge chiar nu stiu, multe suna bine split sa compenseze cu cele single middle si neck. Ceva cu alnico ar merge, dat fiind ca si restu sunt alnico de middle si neck. (atomicu oricum e alnico, ai putea sa il pastrezi daca ti se pare OK split, sa nu te complici aiurea). Spor!

* Fender Stratocaster MIM 2000 came in for a general tinkering * Jay Turser resonator guitar

Spor http://www.pspaudioware.com/plugins/dynamic_processors/psp_mastercomp/

* Restring and pot clean on a Kramer Baretta 84 * Schecter Omen Extreme 6 overhaul

Pai zi asa :D o sa ma uit acasa daca nu am cateva si vorbim pe privat. Parca am un set desperecheat de 5 ramase. Will see

Esti sigur ca suruburile sunt problema?Spun asta pentru ca si alea ieftine, nu se duc usor deloc. Ce inseamna sunt bufnite? La filet sau la hex side? In general la ce descrii tu, s-a stripuit filetul de la SADDLE, si nu surubul. (saddleurile daca nu sunt de steel la modelul tau si sunt aliaj, pot pati asta foarte usor de la suprastrangere, iar eu nu am vazut pana acum suruburi de otel de lock stripped de saddle de aliaj...). Fa o poza la suruburile afectate, si verifica cu un magnet daca se prinde de saddles sau nu.

Schallerul Germany are spatierea adecvata pt ''poza 2''

Nu, pentru ca spatiul nu este suficient(daca ai base similar cu cel de mai jos) pt cei din ''poza 2'', fizic nu este loc.

* Beyerdynamic DT770 Pro driver repair * Rewired an Epiphone LP Custom Pro * Cornish Buffer clone built (135th circuit built) * Repaired a Denon 3808CI Receiver * Old Reghin Hollow Body Rewiring

* Dunlop GCB95 fix * SMD IC to DIP IC adapter * HGE Contraptions Custom 6in1 Pedal (134th effect built) * Marshall Valvestate 8080 repair * Measured 57 tubes with my Sencore TC136 Mighty Mite IV Tube Tester * Harley Benton LP Tuners Replaced * RAN Custom Guitar Rewiring * Digitech GSP 2101 Repair * HGE Contraptions attenuator build (Ken based) * Yamaha F310 TBS acoustic guitar general clean and setup

N-ai cum.... No words.

Germania https://reverb.com/item/24325486-yamaha-dx-7ii-fd-from-1987-one-owner-keyboard-documents-cartrige-and-sale-invoice-fx-synthesizer

* Harley Benton GA-120H Solid State head cleanup * Had a Stagg Acoustic in, that had multiple issues and now are solved * Dunlop 535Q wah in for some connectivity issues * Squier Bullet Strat Indo setup and nut changed to left handed * Had an early 80's US Fender Lead I in for a setup For Fun: https://hgecontraptions.blogspot.com/2019/07/scalloped-necks-done-some-years-ago.html

Iei altu, da-le dreacu O mentiune, daca observi dupa ce ai montat finalii ca fac cumva asta(oricare din ei), stinge-l imediat. Normally ar trebui sa fie OK, si sa nu ai probleme.

Eu as sugera ca e foarte simplu sa faci chiar TU asta, fara ajutorul nimanui. Doar trebuie sa desfaci niste suruburi pentru a indeparta sasiul din cab, si o minima atentie la scoaterea lampilor din socluri, si reintroducerea celor noi. Fiind Ironball, are doua finale EL84, si most likely e cathode biased sau are autobias. Poti direct schimba finalii cu un matched set/dual set de EL84 . In preamp, V1 V2 si V3 sunt ECC83 normale , iar V4 necesita un ECC83 balanced pentru Phase Inverter. Lampile le poti lua de aici: Doua https://www.banzaimusic.com/EL84-EH-Platinum-Matched.html Trei https://www.banzaimusic.com/12AX7-EH.html Si una pentru PI (V4, balanced sa fie) https://www.banzaimusic.com/12AX7-EH-Matched-and-Balanced.html (ti-am dat oarecum decente + aleator luate, poti lua si JJ ca varianta de brand, ca sunt mai ieftine/sau altceva, atata timp cat respecti sa fie cele doua finale matched, trei de pre, si inca una pt PI <phase inverter>, balanced sa fie) SAU te duci pe setul asta ''premium'' https://www.tubeampdoctor.com/en/shop_TAD_Premium_Tube_Sets_Engl_Tube_Sets/Tubeset_for_Engl_Ironball_E606_4690 Bafta.