Line in/out + capacitor Kit for the 1176 rev A, with different options

During its history, the Urei 1176 has passed through several revisions, that had some difference in the circuit. The greatest differences are found between the first version (blue  stripe), the D version (class A output) and the F and later version (class AB output with and without the UTC O12 input transformer). But, if we open two 1176 of the same version, we’ll hardly found inside them the same components. I’ve seen different 1176 and, I’ve noted a thing, they ALL had european components, inside, mostly Wima, Philips Evox and Siemens.

This Kit is assembled to upgrade the UA 1176 rev A reissue, and it include almost all the components you need to build  it, except:

The frontal Trimmer Bourns 2206 (R71), the 1uF and 220nF Sprague 225 Orange drop, the matched pair of 2N5457 (you can buy from Hairball), ad the PSU components. SInce teh 2N3707 are hard to find and must be selected for an HFE over 250, the transistors of the control amp are all 2N5088 (that works the same and doesn't affect the quality of the sound)

The original version of the rev A used only Carbon Comp resistors, but snce too much carbon composition tend to make the sound dull, you have them here only in the place where they can affect the sound in a musical way. 

in this kit there are lots of Allen Bradley resistors, plus Piher and high quality metal film resistors (Beyschlag, Royal Ohm, Draloric, Roederstein), in many case you have 2 kind of reristors for the same place, so you can chose the sound you like. You can use all the AB resistors of the kit for a more vintage a darker sound, or the Piher and beyschlag for a more "open" sound

The PCB of the Haiball audio is designed for 9mm resistor components, but you can mount them vertical, as I've done in mine (see pics)

The kit includes:

Line In (18 resistors)

270R  X 1 Beyschlag Met Film    R4

2,2K   X 1 Bey 309                      R12

4,7K   X 1 Beyschlag Met Film    R17

9,1K   X 1 Bey 309                      R11

10K    X 1 AB                               R8

20K    X 2 Piher 1/2W + AB         R15

22K    X 2 Piher 1/2W + AB         R14

27K    X 1 Piher 1/2W                  R5

47K    X 1 Piher 1/2W                  R13

100K  X 2 Piher 1/2W + Bey MF R16

2M2   X 1 AB                               R6

2M2   X 2 Piher 1/2W                  R7/10

3M9   X 1 AB                               R9 Jan

3M9   X 1 AB                               R65

Line out (17 resistors)

39R   X 1 Piher 1/3W                  R32

560R X 1 Piher 1/2W                  R33

560R X 2 Bey 309 + AB              R28

3,3K  X 1 Piher 1/2W                  R31

8,2K  X 2 Piher 1/2W + Bey MF  R34/35

12K   X 1 Bey 309 + AB              R27

33K   X 2 Piher 1/2W PF + AB    R26

150K X 1 AB                               R30

1M2  X 1 Piher 1/2W                  R29

3.3M X 1 Piher 1/2W                  R25

15M  X 1 ROE SK                      R24

GR Switch

68K X 1 Piher 1/3W            R19

56K X 2 Piher 1/3W            R21/20

47K X 2 Piher 1/3W            R22/78

 FILM CAPACITORS

1 X 6.8pF Silver Mica (C6)

1 X 10pF  Philips NP0 (C11)

1 X 33pF  Philips NP0 (C16)

1 X 1nF     Wima MKC (C13)

1 X 4,7nF  Wima MKC (C15)

1 X 12nF   Philips MKT368

1 X 33nF   Evox (C14)

1 X 0,15uF ERO MKT1826 (C1)

2 X 0,15 ERO MKC (C2/C8)

1 X 0,22uF Evox (C22) 

1 X 1uF ERO MKC 1860 63V (C7)

1 X 1uF WIMA MKS 63V + 1 1uF Evox (C10)

ELECTROLYTICS

2 X 6,8uF          Panasonic FC 63V (C3/9)

4 X 100uF         Nichicon HE 50V (C4/5/12/21)

1 X 1uF             Philips 036 63V (C17)

1 X 47uF           Panasonic FC 35V(C18)

TANTALUM

2 X 6,8uF          Kemet 35V C19/20