Audio Transformers – Philco Library

	Part No.	Tubes	Ratio
1	6064	27 and 45, 47, 42 or 71-A	1:1		1933
2	5662	27 and 45, 47, 42 or 71-A	1:1		1933
3	3872	27 and 45, 47, 42 or 71-A	1:2		1933
4	4952	27 and 45, 47, 42 or 71-A	1:3		1933
5	1232	27 and 45, 47, 42 or 71-A	1:4		1933
6	3537	27 and 45, 47, 42 or 71-A	1:4		1933
7	5662	27 and p.p. 45, 47, 42 or 71-A	1:1		1933
8	3872	27 and p.p. 45, 47, 42 or 71-A	1:1		1933
9	4952	27 and p.p. 45, 47, 42 or 71-A	1:2		1933
10	4232	27 and p.p. 45, 47, 42 or 71-A	1:3		1933
11	3537	27 and p.p. 45, 47, 42 or 71-A	1:4		1933
12	6064	27 and p.p. 45, 47, 42 or 71-A	1:4		1933
13	3242	27 and 26 or 26 and p.p. 45, 71-A, 31 or 50	1:4		1933
14	5315	30 and 33	1:4		1933
15	4862	27 and p.p. 71-A	1:2.2		1933
16	6064	27 and Single or push-pull 45, 47, 42 or 71-A	1:1		1936
17	3872	27 and Single or push-pull 45, 47, 42 or 71-A	1:2		1936
18	4952	27 and Single or push-pull 45, 47, 42 or 71-A	1:3		1936
19	4232	27 and Single or push-pull 45, 47, 42 or 71-A	1:4		1936
20	3242	27 and 26 or 26 and p.p. 45, 71-A, 31, 50	1:4		1936
21	5315	30 and 33	1:4		1936
22	4862	27 and p.p. 71-A	1:2.2		1936
23	6582	38 and p.p. 41	1:4		1936
24	32-7211	85 and p.p. 43	1:1		1936
25	32-7372	85 and p.p. 42	1:4		1936
26	7233	30 Driver and Single 19 37 and 79	1:1.2		1936
27	32-7114	42 1st A.F. Driver and p.p. 42	1:1		1936
28	32-7057	42 Driver and p.p. 42	1:1		1936
29	32-7447	42 Driver and p.p. 6A3	1:1.8		1936
30	6064	27 and Single or push-pull 45, 47, 42 or 71-A	1:1		1937
31	3872	27 and Single or push-pull 45, 47, 42 or 71-A	1:2		1937
32	4952	27 and Single or push-pull 45, 47, 42 or 71-A	1:3		1937
33	4232	27 and Single or push-pull 45, 47, 42 or 71-A	1:4		1937
34	3242	27 and 26 or 26 and p.p. 45, 71A, 31, 50	1:4		1937
35	5315	30 and 33	1:4		1937
36	4862	27 and p.p. 71-A	1:2.2		1937
37	6582	38 and p.p. 41	1:4		1937
38	32-7211	85 and p.p. 43	1:1		1937
39	32-7372	85 and p.p. 42	1:4		1937
40	7233	30 Driver and Single 19 37 and 79	1:1.2		1937
41	32-7114	42 1st A.F. Driver and p.p. 42	1:1		1937
42	32-7057	42 Driver and p.p. 42	1:1		1937
43	32-7447	42 Driver and p.p. 6A3	1:1.8		1937
44	6064	27 and Single push-pull 45, 47, 42 or 71-A	1:1		1938
45	3872	27 and Single push-pull 45, 47, 42 or 71-A	1:2		1938
46	4952	27 and Single push-pull 45, 47, 42 or 71-A	1:3		1938
47	4232	27 and Single push-pull 45, 47, 42 or 71-A	1:4		1938
48	3242	27 and 26 or 26 p.p. 45, 71A, 31, 50	1:4		1938
49	5315	30 and 33	1:4		1938
50	4862	27 and p.p. 71-A , 38 and p.p. 41	1:2.2		1938
51	6582	27 and p.p. 71-A , 38 and p.p. 41	1:4		1938
52	32-7211	85 and p. p. 43	1:1		1938
53	32-7372	85 and p, p. 42	1:4		1938
54	7288	30 Driver and Single 19, 37 and 79	1:1.2		1938
55	32-7114	42 1st A.F Driver and p.p. 42	1:1		1938
56	32-7057	42 Driver and p.p. 42	1:1		1938
57	32-7447	42 Driver and p.p. 6A3	1:1.8		1938
58	32-7484	75 to 42	1:1	10	1939
59	5315	30 to 33	1:4	8	1939
60	3241	30 to 33	1:4	8	1939
61	32-7915	Micro. to 6K5G	1:34	5	1939
62	32-7211	One 75 to two 43	1:1	10	1939
63	6064	One 6B6G to two 25A6 (or 25A6G )	1:1	8	1939
64	5662	One 27 to two 47	1:1	8	1939
65	32-7725	One 6F6 (or 6F6G) to two 6B4G	1:1.4	35	1939
66	32-7447	One 42 to two 6A3	1:1.8	35	1939
67	3872	One 42 to two 6A3	1:2	8	1939
68	4952	One 6F6 (or 6F6G) to two 6B4G	1:3	8	1939
69	32-7849	One 6R7 (or 6R7G) to two 25L6 (or 25L6G)	1:4	2	1939
70	4232	One 85 to two 41	1:4	5	1939
71	32-7828	One 85 to two 41 / One 6V7G to two 6~6G	1:4	5	1939
72	32-7471	One 85 to two 42 / One 6V7G to two 6F6 (or 6F6G)	1:4	5	1939
73	6582	One 38 to two 41 / One 38 to two 6K6G	1:4	14	1939
74	4862	One 30 to two 31	1:4	8	1939
75	3242	One 30 to two 31	1:4	8	1939
76	3537	One 27 to two 45	1:4	8	1939
77	32-7372	One 85 to two 42 / One 6V7G to two 6F6 (or 6F6G)	1:4	5	1939
78	32-7532	One 85 to two 42 / One 6V7G to two 6F6 (or 6F6G )	1:10	5	1939
79	32-7057	One 42 to two 42 / One 6F6 (or 6F6G ) to two 6F6 (or 6F6G)	1:1	50	1939
80	32-7114	One 42 to two 42 / One 6F6 (or 6F6G) to two 6F6 (or 6F6G)	1:1	25	1939
81	32-7876	One 6F6 (or 6F6G) to two 6L6 (or 6L6G) / One 42 to two 6L6 (or 6L6G)	1:1	35	1939
82	7652	One 37 to one 79 / One 37 to one 6Y7G	1.2:1	8	1939
83	7233	One 30 to one 19 / One 1H4G to one 1J6G	1.2:1	8	1939
84	32-7865	One 6J5 (or 6J5G ) to two 6L6 ( or 6L6G)	1.2:1	8	1939
85	32-7637	One 30 to one 19 / One 1H4G to one 1J6G	1.2:1	8	1939
86	32-7480	One 30 to one 19 / One 1 H4G to one 1J6G	1.2:1	8	1939
87	32-8027	One 6J5 (or 6J5G) to two 49	1.2:1	8	1939
88	32-7473	One 30 to one 19 / One 1H4G to one 1J6G	1.2:1	8	1939
89	32-7454	One 30 to one 19 / One 1H4G to one 1J6G	1.2:1	8	1939
90	32-7356	One 76 to one 6A6 / One 76 to one 6N7 (or 6N7G)	1.2:1	8	1939
91	32-7206	One 37 to one 79 / One 37 to one 6Y7G	1.2:1	8	1939
92	32-7681	One 37 to one 79 / One 37 to one 6Y7G	1.2:1	8	1939
93	32-7779	One 37 to one 79 / One 37 to one 6Y7G	2.5:1	8	1939
94	32-7671	Two 6J5 (or 6J5G ) to two 42	2.7:1	0	1939
95	32-7484	85 to 42	1:1		1942
96	5315	27 to 45	1:4		1942
97	3241	27 to 45	1:4		1942
98	32-7211	75 to two 43	1:1		1942
99	5662	27 to two 47	1:1		1942
100	3872	27 to two 45	1:2		1942
101	4952	27 to two 45	1:3		1942
102	4232	85 to two 41	1:4		1942
103	32-7849	6R7G to two 25L6G	1:4		1942
104	32-7532	6V7G to two 6F6G	1:10		1942
105	3537	27 to two 45	1:4		1942
106	32-7471	6V7G to two GF6G	1:4		1942
107	32-7057	6F6G to two 6F6G	1:1		1942
108	7652	37 to one 79	1.2:1		1942
109	32-7637	30 to one 19	1.2:1		1942
110	32-7480	30 to one 19	1.2:1		1942
111	32-7779	37 to one 6Y7G	2.5:1		1942
112	32-7725	6F6G to two 6B4G	1:1.4		1942
113	32-7447	6F6G to two 6B4G	1:1.8		1942
114	32-7865	6J5G to two 6L6G	1.2:1		1942
115	32-7671	Two 6J5G to two 42	2.7:1		1942