Regen Radio Experimenal

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STD Regen Radio Experimenal

Audio

Communication

License: Public Domain

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Update time： 2022-11-02 23:00:55

Creation time： 2020-04-28 19:28:33

Description

A well known regenerative radio design using 2N2222 transistor and silicon diode as AM envelope detector. Also variants on some regenerative designs. Experimental. Some circuits require a high skilled builder and knowledge of trasistor biasing. AM RF. Radio circuits.

Design Drawing

schematic diagram

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Regen 1 - The Start
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Regen 2 - Simple
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Regen 3 - More stations
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Sheet_1
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SW Crystal Radio 4 - RF Amplifier
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Audio Amps
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Regen 4 with RF Amp
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Regen 5 - Multiband
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Regen 6 - Sputnik
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Regen 8 - NGP v2
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Regen 7 - NGP v1
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PCB

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BOM

BOM download Purchase Parts

ID	Name	Designator	Quantity
1	9V DC	B1	1
2	2.2n	C1,C1	2
3	10u	C2	1
4	0.47u	C3,C8	2
5	1u	C4,C15,C1,C2,C21	5
6	4.7u	C5,C13	2
7	0.22u	C5	1
8	2.2u	C8,C16,C19	3
9	47nF	C9	1
10	0.1u	C10,C11,C12,C30,C31	5
11	Audio Output	CN1,CN3	2
12	variable_capacitor	CV1,TRIMMER1,TRIMMER2,5-1PF	4
13	1N4148	D1,D3	2
14	80T	FERRITE_ANTENNA	1
15	30T	L2	1
16	2N2222	Q3,Q4,Q1,Q2,Q5,Q6,Q7,Q12	8
17	470k	R5,R9,R12,R14,R15	5
18	4.7k	R6,R37	2
19	1k	R7,R10,R1,R8,R13,R34,R2,R17,R18,R19,R20,R21,R35,R15	14
20	270	R10,R15	2
21	5.6k	R11	1
22	SWITCH_01	S1,S2,S3	3
23	100U	C2	1
24	1nF	C6,C7	2
25	22nF	C9	1
26	15T	L2	1
27	100k	R2,R7	2
28	10k	R3,R6,R46,R48	4
29	2.2k	R4,R35,R40	3
30	50K	REGEN-ADJ	1
31	1n	C14,C28	2
32	ROJO	LED1	1
33	680k	R12,R14	2
34	750	R16	1
35	100k	RP1	1
36	Dipole 49 mts	AERIAL,AERIAL1,ANTENA	3
37	5T	AIR_CORE,L1,L2,L3	4
38	100pF	C11	1
39	100pF	C23,C24,C37,C38	4
40	0.1u	C25,C27,C34	3
41	1000pF	C26	1
42	10k	GAIN,GAIN1	2
43	4T	L1,L4,L3,L8,L2	5
44	20T	L2	1
45	BNC	P1,P2,P4	3
46	2N3904(SOT-23)	Q9,Q10,Q2	3
47	MPF102	Q11	1
48	100	R27,R44,R49	3
49	330	R28,R43	2
50	15k	R29,R42	2
51	1k	R30,R41	2
52	47	R31	1
53	2.2k	R32,R39	2
54	6.8k	R33,R38	2
55	REG 7805	U3	1
56	0.22u	C10	1
57	470p	C12	1
58	4.7n	C14	1
59	470u	C15	1
60	22p	C28,C39	2
61	47n	C32,C29,C33	3
62	ANTENA	COAX	1
63	5-40pF	CV2	1
64	15-150pF	CV3	1
65	14T	L2,L1	2
66	3T	L3	1
67	J310	N-JFET	1
68	47	R13	1
69	10M	R36	1
70	2.2m	RF_CHOKE	1
71	1K Regen	RP2	1
72	SEL. BANDA	S4,S5,S6,S7	4
73	78L05	U4	1
74	BEEPER 5V	BA1	1
75	1N4007W	D1	1
76	LED-0603_R	LED1	1
77	TRANSISTOR_NPN2N3904	Q1	1
78	560	R1	1
79	SIN(0 1 2) AC 1 0	V1	1
80	LM324	U1,U2	2
81	1N60 Ge	D1	1
82	1.5k	R7	1
83	3V DC	B2	1
84	6V DC	B3	1
85	0.01u	C17	1
86	0.22u	C18	1
87	3800pF	C20	1
88	47u	C22	1
89	TIP42	Q8	1
90	5.6k	R22	1
91	680k	R23	1
92	270	R24	1
93	1.7k	R25	1
94	2.2M	R26	1
95	8 Ohm	SP1,SP2	2
96	33nF	C4	1
97	1u	C10	1
98	100nF	C30,C32	2
99	4.7nF	C31	1
100	47n	C35	1
101	33n	C36	1
102	20-220pF	CV4	1
103	BAT46	D2	1
104	9T	L4,L5	2
105	10T	L6,L7	2
106	2N3904	Q1	1
107	220	R13	1
108	100	R35	1
109	470	R37	1
110	47k	R45	1
111	8.6k	R47	1
112	3.3mH	RF_CHOKE	1
113	10K Regen	RP2	1
114	78L06	U4	1
115	9V'14 DC	B1	1
116	220pF	C34	1
117	100n	C35	1
118	330pF	C37,C38	2
119	100nF	C40,C41	2
120	500	GAIN2	1
121	4.7k	R38	1
122	12k	R39,R41	2
123	3.3k	R42	1
124	220	R43	1